list of letters
This site contains terms and definitions from many IBM software and hardware products as well as general computing terms.
An object-oriented high-level language that evolved from the C language. C++ takes advantage of the benefits of object-oriented technology such as code modularity, portability, and reuse.
A level of security defined in the Trusted Computer System Evaluation Criteria (TCSEC) published by the United States Government. To meet C2 requirements, a system must perform discretionary access control, authentication and verification, object reuse protection, and auditing of security-relevant events.
See common anchor area.
A section of cable between components or devices on a network. A segment may consist of a single patch cable, multiple patch cables that are connected to one another, or a combination of building cable and patch cables that are connected to one another.
See certificate authority certificate.
- To place a duplicate copy of a file on random access media when the server migrates a file to another storage pool in the hierarchy.
- Memory used to improve access times to instructions, data, or both. Data that resides in cache memory is normally a copy of data that resides elsewhere in slower, less expensive storage, such as on a disk or on another network node.
- A buffer that contains frequently accessed instructions and data; it is used to reduce access time.
- To place, hide, or store frequently used information locally for quick retrieval.
cache fast write
A storage control capability in which data is written directly to cache without using nonvolatile storage. Cache fast write is useful for temporary data or data that is readily re-created. See also DASD fast write.
A snapshot of a logical volume created by Logical Volume Snapshot Agent. Blocks are saved immediately before they are modified during the image backup and their logical extents are saved in the cache files.
- An event that satisfies a read operation by retrieving data from cache instead of retrieving it from the intended storage or a lower level of cache. See also cache miss.
- A processor storage reference that is satisfied by information from a cache.
- A record that contains relevant information about the user data that is currently in the subsystem cache memory. Examples of this information include the current state of the data and the intended location of the data on one or more disks.
- The cache component that is normally loaded, stored, and interrogated during cache lookup.
- A delay that occurs when the processor references data or instructions that are not already in the data cache or instruction cache.
- An event that satisfies a read operation by retrieving data from the intended storage or a lower level of cache because the requested data is not available in the only level or a higher level of cache. See also cache hit.
A coupling facility structure that stores data that can be available to all members of a Sysplex. A DB2 data sharing group uses cache structures as group buffer pools. See also group buffer pool.
In a federated system, a logical table object that is used to cache data from a data source table. A cache table comprises a nickname that identifies the data source table, one or more materialized query tables, and a schedule for replicating the data in each materialized query table.
The process of storing frequently used results from a request to memory for quick retrieval, until it is time to refresh the information. The DB2 database manager provides many forms of caching, such as directory caching, package caching, file system caching, and LDAP caching.
caching proxy server
A proxy server that stores the documents that it retrieves from other servers in a local cache. The caching proxy server can then respond to subsequent requests for these documents without retrieving them from the other servers. This can improve response time.
See client acceptor daemon.
See I/O cage.
See command attention key.
A set of ranges that can be used by a calculation rule. For example, for shipping charges, there can be a set of weight ranges that each correspond to a particular cost. That is, a product that weighs between 0 to 5 kg might cost $10.00 to ship, while a product weighing 5 to 10 kg might cost $15.00 to ship.
A list of scheduling dates. Calendars are defined in the database and are mostly assigned to run cycles. Calendars can be used either to identify the dates when job streams or jobs can be run (when used with inclusive run cycles), or when they cannot be run (when used with exclusive run cycles). A calendar can also be designated for use as a non-working days calendar in a job stream. See also exclusive run cycle, holidays calendar, iCalendar, inclusive run cycle, non-working days calendar.
- In capacity planning, the process of refining a model so that it represents the system the user is modeling. The predicted and measured values should match as closely as possible, with no more than a 10% difference for resource utilization, and no more than a 20% difference for response times.
- The comparison and adjustment of an instrument to a standard of known accuracy.
- An instruction in COBOL, assembler language, C, C++, or PL/I format that is used by an application program to request DL/I services.
- A physical or logical connection between one or more parties in a telephone call.
- To start a program or procedure, usually by specifying the entry conditions and transferring control to an entry point.
- An action state that invokes an operation on a classifier.
- A single runtime instance of a voice application.
- In query management, the Common Programming Interface (CPI) that includes the definitions of the control blocks and constants used for the interface. See also command interface.
- The application server to which the QMF session is currently connected. After the connection is made, this server processes all SQL statements.
- The name of the interface program, the definition of the arguments passed to the interface program, and the definition of the data structures passed to the interface program.
- Services that are provided by IMS for use by IMS exit routines. These services provide clearly defined interfaces that allow exit routines to request various functions, such as acquiring storage or finding an IMS control block.
- A program service provided through a programming interface. See also action service.
- A set of documented interfaces between the z/OS operating system and higher level applications that want to access functions specified in the Single UNIX Specification and earlier standards. See also system call.
A call supervision packet that a called data terminal equipment (DTE) transmits to indicate to the data circuit-terminating equipment (DCE) that it accepts the incoming call. See also call connected packet, call request packet.
call attachment facility (CAF)
A DB2 for z/OS attachment facility for application programs that run in TSO or z/OS batch. The CAF is an alternative to the DSN command processor and provides greater control over the execution environment. See also Resource Recovery Services attachment facility.
- In the AIX operating system, a procedure that is called if and when certain specified conditions are met.
- A message consumer or an event handler routine.
- A way for one thread to notify another application thread that an event has happened.
- Pertaining to a characteristic that tells a remote system whether the local system it tries to access will verify its identity.
- See implementation function.
- Executable code that allows a lower-level software layer to call a function defined in a higher-level layer.
A mechanism that uses a Java Authentication and Authorization Service (JAAS) interface to pass a security token to the web service security run time for propagation in the web service security header.
- A place staffed by users in the customer service representative access group, who can perform some functions on behalf of a customer. For example, they can update customer information, including the password; they can also update orders or place a new order.
- A central point at which all inbound calls are handled by a group of individuals on a controlled sequential basis. Call centers are usually a front end to a business such as airline ticketing or mail order.
call connected packet
In X.25 communications, a call supervision packet transmitted by a DCE to inform the calling DTE of the complete establishment of the call. See also call request packet, call-accepted packet.
call detail record (CDR)
In telephony, a unit of information containing data about a completed call, such as the time the call began, its duration and date, the originating extension, and the number called.
called DLS user
The data link service (DLS) user in connection mode that processes requests for connections from other DLS users. See also Data Link Service.
See dialed number identification service.
- On a switched line, the location to which a connection is established.
- Any person, device, or system that receives a telephone call. See also caller.
- Any person, device, or system that makes a telephone call. See also called party.
- A function that calls another function.
- The requester of a service.
A communication link established between a product and a service provider. The product can use this link to place a call to IBM or to another service provider when it requires service. With access to the machine, service personnel can perform service tasks, such as viewing error and problem logs or initiating trace and dump retrievals. See also heartbeat.
See network user address.
A part of the external CICS interface (EXCI). The CALL interface consists of six commands that allow you to allocate and open sessions to a CICS system from non-CICS programs running under MVS; issue DPL requests on these sessions from the non-CICS programs; and close and deallocate the sessions on completion of the DPL requests.
call level interface (CLI)
An API for database access that provides a standard set of functions to process SQL statements, XQuery expressions, and related services at run time. See also embedded SQL.
- The action of bringing a computer program, a routine, or a subroutine into effect.
- A kernel parameter that establishes the maximum number of scheduled activities that can be pending simultaneously.
- An outbound message to request services or data from an enterprise application or web service.
Software that provides basic computer-telephony integration (CTI) enablement and comprehensive CTI functionality. This includes access to, and management of, inbound and outbound telecommunications.
call progress signal
A call control signal transmitted from the data circuit-terminating equipment (DCE) to the calling data terminal equipment (DTE) to indicate the progress of the establishment of a call, the reason why the connection could not be established, or any other network condition.
call request packet
A call supervision packet that a data terminal equipment (DTE) transmits to ask that a connection for a call be established throughout the network. See also call connected packet, call-accepted packet.
call request signal
During the establishment of a connection for a call, a signal that informs the data circuit-terminating equipment (DCE) that a data terminal equipment (DTE) has asked to make a call.
- A list of data elements that is constructed and maintained by the Java virtual machine (JVM) for a program to successfully call and return from a method.
- The ordered list of all programs or procedures currently started for a job. The programs and procedures can be started explicitly with the CALL instruction, or implicitly from some other event.
In the Distributed Computing Environment (DCE), a thread created by a remote procedure call (RPC) server's run time to execute remote procedures. When engaged by an RPC, a call thread temporarily forms part of the RPC thread of the call.
See content-addressable memory.
A planned series of operations including advertisements and suggestive selling techniques, that are pursued to achieve a defined set of business objectives. In the WebSphere Commerce Accelerator, campaigns are used to coordinate and aggregate groups of campaign initiatives.
Canadian Standards Association (CSA)
A not-for-profit membership-based association dedicated to standards development for business, industry, government and consumers in Canada and the global marketplace. See also CSA International.
A closedown in which a program is abnormally terminated either because of an unexpected situation or as the result of an operator command. See also orderly closedown, quick closedown.
cancellation cleanup handler
A function that you can specify to perform an action, such as releasing resources, that occurs after the thread returns from the start routine and calls pthread_exit() or after a cancellation request is performed on the thread.
One of two values, which are either enabled or disabled, that describe whether cancellation requests in the current thread are acted on or held in a pending state. If the value is enabled, the cancellation request is acted on immediately and is based on the current cancellation type. If the value is disabled, the cancellation request is held in a pending state until it is enabled.
One of two values (deferred or asynchronous) that describe how cancellation requests in the current thread are acted on when the cancellation state is enabled. If the value is deferred, the cancellation request is held pending. If the value is asynchronous, the cancel request is acted on immediately, thus ending the thread with a status of PTHREAD_CANCELED.
A known service endpoint that implements an interface for a particular request. The set of candidates is then filtered by the dynamic assembler to select the best endpoint out of all the candidates.
The list of entities that have the potential to match the incoming identity. The candidate list is built by retrieving those entities that share certain attributes (such as numbers and addresses) with the incoming identity, based on the attributes that are specified in the candidate builder. During the re-resolve process, the list of entities are matched to the new composite entity. See also candidate builder.
The minimum score at which a particular attribute value must match between the incoming identity and an existing entity to satisfy the resolution rule. See also resolution rule.
In LANs, the IEEE 802.1 format for the transmission of medium access control (MAC) addresses for token-ring and Ethernet adapters. In canonical format, the least significant (rightmost) bit of each address byte is transmitted first. See also noncanonical address.
See line mode.
- A group of functions and features that can be hidden or revealed to simplify the user interface. Capabilities can be enabled or disabled by changing preference settings, or they can be controlled through an administration interface.
- A function or feature that is made available by an application, tool, or product.
- Specific features or characteristics of a piece of software, such as the database version.
In OSI, a confirmed data transfer service provided by the session layer to transfer a limited amount of data outside of an activity. Capability data can be used by two peers to exchange information about their capability to start an activity.
A series of messages that pass between two CICS regions to establish if they can communicate using IP interconnectivity (IPIC). The capability exchange determines the security controls that are applied to the connection, the number of sessions to be made available, and resynchronizes any outstanding work if the connection has previously failed.
A category, such as "database" or "hardware" that is used to group characteristics of a piece of software. For example, the "hardware" capability type includes characteristics such the BIOS vendor and BIOS version.
- The actual number of parallel servers and workstation resources available during a specified open interval.
- A measure of how much volume or revenue can be handled by a specific resource.
A licensing model that licenses features with a price-per-terabyte model. Licensed features are FlashCopy, and Metro Mirror and Global Mirror, and virtualization. See also FlashCopy, Metro Mirror, virtualization.
See data deduplication.
A function that uses information about the system, such as a description of the system's workload, performance objectives, and configuration, to determine how the data processing needs of the system can best be met. The capacity planner then recommends, through the use of printed reports and graphs, ways to enhance performance, such as hardware upgrades, performance tuning, or system configuration changes.
- The process of determining the hardware and software configuration required to accommodate the anticipated workload on a system.
- The process of scheduling the resources required to perform project work.
Capacity Upgrade on Demand (CUoD)
The capability to permanently activate one or more inactive processors without having to restart the server or interrupt the data flow of the business, through the purchase of a permanent processor activation. This capability adds significant value by enabling a fast and economical way to add capacity for new workloads, enabling the server to adapt to unexpected performance demands. See also activation code, application provisioning, dynamic LPAR, free pool, Hardware Management Console, IBM eServer On/Off Capacity on Demand.
An uppercase letter. See also simple letter.
capital lock (caps lock)
The keyboard function that invokes the uppercase of alphabetic characters, but does not change the response of numeric and other keys. This function is convenient for combining uppercase letters with numbers as in the string !0M3C 1H7!1. Capital Lock is a toggle key.
capitals lock state
A state that, if activated, will result in the generation of the capital form of all graphic characters on the keyboard for which such a form exists. National standards or usage may determine which graphic characters are affected by this state (see ISO/IEC 9995-1).
See capital lock.
A specification of the type of capsule that can occupy a particular position in a capsule's collaboration or structure. Capsule roles are strongly owned by the container capsule and cannot exist independently of it.
- Text associated with, and describing, a table or figure.
- A description associated with an identifier. The caption is often used in preference to the identifier in reports to make them more comprehensible.
- A National Language Support-enabled text string in a policy expression that describes the policy.
- The process by which an acquirer receives payment from the customer's financial institution and remits the payment. A "capture" is the guarantee that the funds are available and that the transfer will take place.
- To digitize an image into the video memory of the M-Video Capture Adapter.
- In SQL replication, event publishing, and Q replication, to gather changes from a source database. These changes can come from the DB2 log or journal or from source transactions in a relational database that is not a DB2 database.
Capture control server
In SQL replication, a database or subsystem that contains the Capture control tables, which store information about registered replication source tables. The Capture program runs on the Capture control server.
A virtual window into the actual unit control block (UCB). Captured UCB resides in private storage below 16 MB. All the virtual windows on the actual UCB view the same data at the same time. Only actual UCBs above 16 MB are captured. See also actual UCB, unit control block.
In SQL replication, an approximate difference between the time that source data was changed and the time that the Capture program made the data available to the Apply program by committing the data to a CD table. Capture latency is a subset of the end-to-end latency in a replication configuration. See also Apply latency, end-to-end latency, latency, Q Apply latency, Q Capture latency.
In SQL replication, a program that reads database log or journal records to capture changes that are made to DB2 database source tables and store them in staging tables. See also Apply program, Capture trigger, Q Capture program.
A capture specification provides the information that CICS will use to detect an event within an application or in the system. The capture specification can include the capture point, capture data, and predicates for filtering and is defined in the event binding file.
In SQL replication, a mechanism that captures delete, update, or insert operations that are performed on source tables other than DB2 source tables. See also Apply program, Capture program.
A transferrable permit that allows an organization to release one ton of carbon dioxide into the environment. The implementation of carbon credits is an attempt to reduce the amount of greenhouse gases that are being produced.
The amount of greenhouse gas that a person or organization is responsible for producing. A smaller carbon footprint is associated with having less detrimental effect on the environment.
- WML document that provides user-interface and navigational settings to display content on mobile devices. See also deck.
- In the Map Designer, a data object. There are two types of map cards: input and output.
- An item of equipment that is inserted in a shelf. A card is a predefined business object.
- An electronic circuit board that is plugged into a slot in a system to give it added capabilities.
A one-to-one representation of the hole patterns of a punched card; for example, a card image might be a matrix in which a one represents a punch and a zero represents the absence of a punch.
- The number of elements in a set. See also multiplicity.
- For OLAP data sources, the number of members in a hierarchy. The cardinality property for a hierarchy is used to assign solve orders to expressions.
- The number of rows in a database table or the number of elements in an array. See also associative array.
- For relational data sources, a numerical indication of the relationship between two query subjects, query items, or other model objects.
- A measure of the number of unique values in a column.
carriage control character
A character that is used to specify a write, space, or skip operation. See also control character.
- A keystroke generally indicating the end of a command line.
- The action that indicates that printing is to be continued at the left margin of the next line. A carriage return is equivalent to the carriage return of a typewriter.
- The movement of the printing position or display position to the first position on the same line.
carrier management system
A network management product that a communication common carrier provides to a customer; this product monitors and manages the telecommunication equipment that the communication common carrier provides for the customer's network.
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
An arbitration protocol in which multiple stations access the network without explicit coordination, avoiding contention by checking for other signals (sensing the carrier) and deferring if a signal is already present. Should two signals collide, each station detects the collision and transmits again after a random amount of time.
See command and response token.
For an IBM TotalStorage Enterprise Automated Tape Library 3494, IBM 3495 Tape Library Dataserver, or a manual tape library, the act of physically removing a tape cartridge, usually under robot control, by placing it in an output station. The software logically removes the cartridge by deleting or updating the tape volume record in the tape configuration database (TCDB). For a manual tape library, cartridge eject is the logical removal of a tape cartridge from the manual tape library by deleting or updating the tape volume record in the TCDB.
For an IBM TotalStorage Enterprise Automated Tape Library 3494, IBM 3495 Tape Library Dataserver, or a manual tape library, the process of logically adding a tape cartridge to the library by creating or updating the tape volume record in the tape configuration database (TCDB). The cartridge entry process includes the assignment of the cartridge to the scratch or private category in the library.
- See Common Analysis Structure.
- See China Association for Standards.
- See channel associated signaling.
- See coordinating address space.
- An operation that propagates the exact same operation to all dependant objects.
- To connect in a series or in a succession of stages so that each stage derives from or acts upon the product of the preceding stage. For instance, network controllers might be cascaded in a succession of levels in order to concentrate many more lines than a single level permits.
A transaction that spans nodes and is coordinated by Resource Recovery Services (RRS). cascaded multisystem transaction. A transaction that spans systems in a sysplex and is coordinated by Resource Recovery Services (RRS).
The process of deleting rows from a child table when the foreign key is deleted from the parent table. When any rows are deleted from the primary key column of a table, cascading deletes, if enabled, delete identical information from any foreign-key column in a related table.
A replication topology in which there are multiple tiers of servers. A peer/master server replicates to a small set of read-only servers which in turn replicate to other servers. Such a topology off-loads replication work from the master servers.
A resource that can be taken over by more than one node. A takeover priority is assigned to each configured cluster resource group on a per-node basis. In the event of a takeover, the node with the highest priority acquires the resource group. If that node is unavailable, the node with the next-highest priority acquires the resource group, and so on.
See Computer Assisted Software Engineering.
- The word case followed by a constant expression and a colon. When the selector is evaluated to the value of the constant expression, the statements following the case label are processed.
- In Pascal, a value or range of values that comes before a statement in a CASE statement branch. When the selector is evaluated to the value of a CASE label, the statement following the case label is processed.
A property, such as a name or date, that is defined at the solution level and reused in a case type, document type, task, or step in that solution. See also case type, document type, step, task.
- The definition of a case. The information that a case type provides is similar to that information that a process definition or template provides for a process instance. See also case property.
- A logical way to group similar tasks, the necessary document types to support the task, the task steps, and the roles that must complete those steps to solve a business problem. A case type also includes properties.
case weight (CW)
In cultural sorting, the combined weight value of case, subscripting, superscripting, fractions, and other factors. For example, the lowercase letter a precedes the uppercase letter A, and middle Arabic shapes precede final Arabic shapes. See also alphanumeric weight, diacritical weight, indifferent weight, level 3, mark weight, special weight.
See common analysis structure processor.
- A software component which supports a particular payment protocol.
- In cut-sheet printers, a removable container for a supply of paper.
- In programming languages, an expression that converts the value of its operand to a specified type.
- A database object and an operator for converting data from one data type to another. Built-in data types have built-in casts to compatible data types within database server. See also explicit cast, implicit cast, user-defined cast.
A function that is used to convert instances of a source data type into instances of a different target data type. In general, a cast function has the name of the target data type and has one single argument whose type is the source data type. Its return type is the target data type.
See Customer Premise Equipment Alerting Signal tone.
See Customer Analysis Tool.
- A collection of tables and views that contains descriptions of objects such as tables, views, and indexes.
- A data set that contains information about other data sets.
- A directory of files and libraries, with reference to their locations.
- To specify the record class and file plan location when declaring a record.
- A container for one or more offerings that a user can request.
- A container that, depending on the container type, holds processes, data, resources, organizations, or reports in the project tree.
- To enter information about a data set or a library into a catalog.
- A container that stores items. An item can belong to only one catalog. Each catalog must be associated with at least one hierarchy, the primary hierarchy, and can be associated with one or more secondary hierarchies. See also item.
- A repository for storing specifications for builds, reference structures, connections, and other components.
A catalog entry, either a user catalog entry or a catalog connector entry, in the master catalog that points to a user catalog's volume (that is, it contains the volume serial number of the direct access volume that contains the user catalog).
An object in an online catalog. An entry has a name, description, list price, and other details. The entry can be as simple as a SKU; it may also be a product that is automatically broken down into its component items such as a bundle or package. See also list price.
A filter that controls product entitlement by dividing catalogs into subsets as defined by the business owner. Catalog filters can also be used as one of the price rules conditions when determining the prices for the set of catalog entries that a set of customers are entitled to.
See catalog partition.
- In a partitioned database environment, the database partition where the catalog tables for the database are stored. Each database in a partitioned database environment can have its catalog partition on a different database partition server.
- In a partitioned database environment, the database partition where the catalog tables for the database are stored. Each database in a partitioned database environment can have its catalog partition on a different database partition server. The catalog partition for a database is automatically created on the database partition server where the CREATE DATABASE command is run.
catalog recovery area (CRA)
An entry-sequenced data set (ESDS) that exists on each volume owned by a recoverable catalog, including the volume on which the catalog resides. The CRA contains copies of the catalog's records and can be used to recover a damaged catalog.
A table that is automatically created in the DB2 database catalog when a database is created. Catalog tables contain information about a database and its objects. See also catalog view.
- One of a set of views automatically created when a database is created. Catalog views contain information about the database and the objects in that database. Examples of information about the database are definitions of database objects and information about the authority that users have on these objects. See also catalog table.
- In DB2 for Linux, UNIX, and Windows, a SYSCAT or SYSSTAT view on the catalog table.
A block associated with a try block that receives control when an exception matching its argument is thrown. See also try block.
A server that service personnel use to collect and retain status data that other machines, such as the TotalStorage Enterprise Storage Server (ESS), send to it. See also catcher telephone number.
catcher telephone number
The telephone number that connects the ESS to the support-catcher server and enables the ESS to receive a trace or dump package. See also catcher, Remote Technical Assistance and Information Network.
catching message intermediate event
An intermediate event that is triggered when a specific message is received. See also intermediate event.
A local mount that z/OS UNIX automatically issues to every other system's physical file system that is running sysplex-aware for that mode (read-write or read-only) when a file system mount is successful on a system in a shared file system environment.
In an RSR environment, the process by which tracked log data is used to make all recoverable resources (for example, shadow databases) current with those resources on the active IMS.
In high availability disaster recovery, a state in which the standby database might not have applied all logged operations that occurred on the primary database. In this state, the standby database retrieves and applies previously generated log data to synchronize with the primary database. There are two types of catchup states: local and remote.
- A classification of elements for documentation or analyses.
- A word or phrase that classifies and organizes glossary content in the business glossary. A category can contain other categories, and it can also contain terms. Categories provide the logical structure for the glossary so that the user can browse and understand the relationships among terms and categories in the glossary. In addition, a category can reference terms that it does not contain.
- A type class that is used to organize types in a type tree in the Type Designer. Categories organize types that have common properties.
- A container that groups a set of related records within a file plan.
- A logical subset of volumes in a tape library. A category can be assigned by the library manager (for example, the insert category) or by the software (such as, the private or scratch categories).
- A group within a system of classification whose contents share similar properties. See also category page.
- A property that is set on an element of the business object model (BOM) and can be applied to business classes and filtered in business rules. This property allows the user to specify whether a business class and its members are visible in a rule.
- A classification of an item. Hierarchies are made up of categories and items. Items in a catalog can be associated to one or more categories from the specifications of the catalog. Items can also be unassigned, which is their default state, which means they are not in any category yet. Every hierarchy has exactly one root category. Every category can have any number of additional categories within it, called sub-categories. See also container, hierarchy.
- An optional grouping of messages that are related in some way. For example, messages that relate to a particular application might be included in a single category. See also message.
- A container used in a structure diagram to group elements based on a shared attribute or quality.
- A set of items that are grouped according to a specific description or classification. Categories can be different levels of information within a dimension. See also member.
- The recommended security specifications needed for both the CICS transaction definitions and the corresponding RACF profiles.
category 1 transaction
A set of CICS transactions categorized according to the level of security checking required for them. Transactions in this category are never associated with a terminal: that is, they are for CICS internal use only and should not be invoked from a user terminal. For this reason, CICS does not perform any security checks when it initiates transactions in this category for its own use.
category 2 transaction
A set of CICS transactions categorized according to the level of security checking required for them. Transactions in this category are either initiated by the terminal user or are associated with a terminal. You should restrict authorization to initiate these transactions to user IDs belonging to specific RACF groups.
category 3 transaction
A set of CICS transactions categorized according to the level of security checking required for them. Transactions in this category are either invoked by the terminal user or associated with a terminal. All CICS users, whether they are signed on or not, require access to transactions in this category. For this reason, they are exempt from any security checks and CICS permits any terminal user to initiate these transactions. Examples of category 3 transactions are CESN and CESF, to sign on and off, respectively.
An attribute instance on a category. The attribute is defined in the specification of the owning hierarchy or by a secondary specification associated to that category. See also attribute instance.
A value that uniquely identifies every category within a dimension. See also member unique name.
category data set
A data set in which the user can specify whether x-values should be stored in memory or computed according to the indices of data points. The x-values correspond to a category number.
A defined role in WebSphere Commerce that manages the category hierarchy by creating, modifying, and deleting categories. The category hierarchy organizes products or services offered by the store. The category manager also manages products, expected inventory records, vendor information, inventory, and return reasons.
A web page in an online store that displays product categories. Category pages connect customers to child category pages or to products that belong to the selected category. See also category, child category.
A subset of the categories in a dimension, either from a single level or from different levels in the same dimension. See also set.
category-specific item attribute
An attribute instance that applies to an item because of the presence of that item in a given category. A secondary specification with additional attributes is applied to that category, and all items in that category gain those extra fields. See also attribute instance.
See cube adjusted weight.
See cipher block chaining.
See component-based development.
See Cell Broadband Engine architecture.
See control blocks in common.
See Class Broker for Java.
See Custom-built Product Delivery Option.
See composite business service.
See computerized branch exchange.
See Common Cryptographic Architecture.
See C/370 common anchor area.
- See conversation control block.
- See connection control block.
- See change control board.
- See command control block.
See concurrent copy-compatible snapshot.
See Common Customs Classification System.
See client channel definition table.
See consistent-change-data table.
See CICS container-based event format.
See custom card identification number.
See common communication layer.
See channel command retry.
- See Common Communications Support.
- See coded character set.
- See common channel signaling.
- See console communication service.
See coded character set identifier.
See coded character set identifier 65534.
See coded character set identifier 65535.
See channel command word.
See compact disc.
See channel definition file.
See connector development kit.
See Common Data Link Interface.
See code division multiple access.
See Commercial Data Masking Facility.
See cross-domain network manager session.
See cellular digital packet data.
See compact disc recordable.
See cross-domain resource manager.
See compact-disc read-only memory.
See cross-domain resource.
- See central directory server.
- See couple data set.
- See control data set.
- See Cell Directory Service.
See CICS dynamic storage area.
See CDS control program.
See connect data set to line.
See class descriptor table.
See change-data table.
See conditional end bracket.
See central electronics complex.
See country extended code page.
A dump of the run-time environment for Language Environment and the member language libraries. Sections of the dump are selectively included, depending on options specified on the dump invocation. This is not a dump of the full address space, but a dump of storage and control blocks that Language Environment and its members control.
See Common Event Infrastructure.
See Command Execution Language.
- In a WebSphere Application Server distributed network, an arbitrary, logical grouping of one or more notes that are managed together.
- The rectangular juncture of a horizontal row and a vertical column. Examples include the cells of an electronic spreadsheet and the cells utilized by an XmRowColumn widget in an AIXwindows graphic interface.
- A group of managed processes that are federated to the same deployment manager and can include high-availability core groups.
- A single cartridge location within an Automated Tape Library Dataserver (ATLDS). See also rack number, slot.
- In asynchronous transfer mode (ATM), a medium access control (MAC) protocol data unit (PDU) of fixed size.
- One or more processes that each host runtime components. Each has one or more named core groups.
- A logical grouping of users, computers, data, and other resources that share either a common purpose or a common level of trust.
- In a multidimensional clustering table, a unique combination of dimension values. Physically, a cell is made up of blocks of pages whose records all share the same values for each dimension column.
Cell B.E. processor
See Cell Broadband Engine processor.
Cell Broadband Engine architecture (CBEA)
A new processor structure based upon the 64-bit Power Architecture? technology, but with unique features directed toward distributed processing and media-rich applications.
Cell Broadband Engine processor (Cell B.E. processor)
A single-chip multiprocessor consisting of one or more PowerPC Processor Elements (PPEs) and one or more (typically eight) Synergistic Processor Elements (SPEs). It is used for distributed processing and media-rich applications. See also PowerPC Processor Element, Synergistic Processor Element.
Cell Directory Service (CDS)
A Distributed Computing Environment (DCE) component that manages a database of information about the resources within a cell. See also Global Directory Service.
See local name.
cellular digital packet data (CDPD)
A standard for transmitting data over a cellular network that places the data in digital electronic envelopes and sends it at high speed through underused radio channels or during pauses in cellular phone conversations. See also packet switching.
See Central Europe, Middle East, and Africa.
central data warehouse
The component of Tivoli Enterprise Data Warehouse that contains the cleansed historical data. Data in the central data warehouse is derived from operational data, although operational data is not stored directly in the central data warehouse.
central data warehouse ETL
In Tivoli Enterprise Data Warehouse, the extract, transform, and load (ETL) process that reads the data from the operational data stores of the application that collects it (for example, a log file, a Tivoli Inventory repository, or a Tivoli Enterprise Console database), verifies the data, makes the data conform to the Tivoli Enterprise Data Warehouse schema, and places the data into the central data warehouse. See also data mart ETL.
central directory server (CDS)
A network node that provides a repository for information on network resource locations. It also reduces the number of network searches by providing a focal point for queries and broadcast searches, and by storing the results of network searches to avoid later broadcasts for the same information.
central electronic complex
See central processor complex.
Central Europe, Middle East, and Africa (CEMA)
For organizational, legal, or administrative purposes, the region comprising Bulgaria, Croatia, Czech Republic, Egypt, Hungary, Pakistan, Poland, Romania, Russia, Serbia and Montenegro, Slovakia, Slovenia, and IBM Middle East. See also Northeast Europe.
A type of control in which in which all the primary station functions of the data link are centralized in one data station. See also independent control.
centralized directory service
In OSI, a method of organizing directory services so that one node provides directory service for other nodes. OSI Communications Subsystem supports only centralized directory service.
Central Messaging Engine Administrator (CME Admin)
See application monitor.
central office (CO)
A telephone switching system that connects customer-premise business and subscriber lines to other customer lines or trunks, both locally or remotely. A central office is located on the edge of the telephone service provider's network, rather than on a customer's premises.
central processing unit (CPU)
A server's database that logs requests for licenses, upgrades for licenses, and journals all license activity in a tamper-proof auditable file. The central registry is a component of the License Use Management network topology.
A function that permits an administrator to schedule client operations and administrative commands. The operations can be scheduled to occur periodically or on a specific date. See also administrative command schedule, client schedule.
In a network of systems, the system licensed to receive program temporary fixes (PTFs) and distribution media from IBM. This system is also used to provide problem handling support to other systems in a network. In a distributed data processing network, the central site is usually defined as the focal point in a communications network for alerts, application design, and remote system management tasks such as problem management.
central site control facility (CSCF)
In Tivoli NetView for OS/390, NetView for VM, and NetView for VSE, a function that allows a network operator to run the test facilities of the IBM 3172 Nways Interconnect Controller and the IBM 3174 Establishment Controller remotely from the NetView console.
Storage that is an integral part of the processor unit. Central storage includes both main storage and the hardware system area. UNIX-experienced users refer to central storage as memory.
- See Conference Europeenne des Administrations des Postes et Telecommunications.
- See Commission of European Post and Telegraph.
See CERT Coordination Center.
CERT Coordination Center (CERT/CC)
A major reporting center for Internet security problems. Staff members provide technical advice and coordinate responses to security compromises, identify trends in intruder activity, work with other security experts to identify solutions to security problems, and disseminate information to the broad community. The CERT/CC also analyzes product vulnerabilities, publishes technical documents, and presents training courses.
In computer security, a digital document that binds a public key to the identity of the certificate owner, thereby enabling the certificate owner to be authenticated. A certificate is issued by a certificate authority and is digitally signed by that authority. See also certificate authority, certificate signing request, SSL server authentication.
- A component that issues certificates to each computer on which components are installed.
- A trusted third-party organization or company that issues the digital certificates. The certificate authority typically verifies the identity of the individuals who are granted the unique certificate. See also certificate, Globus certificate service, Secure Sockets Layer, SSL server authentication.
certificate authority certificate (CA certificate)
In computer security, a digital document that identifies an organization that issues certificates. See also digital certificate.
certificate name filter
A general resource profile that maps multiple user IDs to a digital certificate in order to simplify administration of certificates, conserve storage space in the RACF database, maintain accountability, or maintain access control granularity.
certificate revocation list (CRL)
A list of certificates that have been revoked before their scheduled expiration date. Certificate revocation lists are maintained by the certificate authority and used, during a Secure Sockets Layer (SSL) handshake to ensure that the certificates involved have not been revoked.
certificate signing request (CSR)
An electronic message that an organization sends to a certificate authority (CA) in order to obtain a certificate. The request includes a public key and is signed with a private key; the CA returns the certificate after signing with its own private key. See also certificate, keystore.
- The Windows name for a key repository.
- A collection of certificates.
See connection event sequence.
See content-enabled vertical applications.
CF cache structure
See coupling facility cache structure.
See CICS flattened event format.
See combined function IOP.
See command function key.
CF lock structure
See coupling facility lock structure.
See Configuration File Manager.
Confirmed message. When a sending MERVA Link system is informed of the successful delivery of a message to the receiving application, it routes the delivered application messages as CF messages, that is, messages of class CF, to an ACK wait queue or to a complete message queue.
See coupling facility resource management.
See coupling facility resource management policy.
See continuous-forms stacker.
See coded graphic character set global identifier.
See Common Gateway Interface.
See CGI script.
A computer program that runs on a web server and uses the Common Gateway Interface (CGI) to perform tasks that are not usually done by a web server (for example, database access and form processing).
See Computer Graphics Metafile.
See character generator utility.
- The name of a channel framework connection that contains an endpoint definition.
- A group of logically linked records that are transferred over a communications line.
- A set of enclosures that are attached to provide redundant access to the drives inside the enclosures. Each control enclosure can have one or more chains.
- In DFU, a way to change from one display format to another after the user signals that the first display format was completed.
- A group of request units delimited by begin-chain and end-chain. Responses are always single-unit chains.
- In RPG, an operation code that reads input records identified by specified relative record numbers or keys.
In CICS intercommunication, a grouping of one or more request units to satisfy a single request. Instead of an input request being satisfied by one RU at a time until the chain is complete, the whole chain is assembled and sent to the CICS application satisfying just one request. This ensures that the integrity of the whole chain is known before it is presented to the application program.
- In the Distributed Computing Environment (DCE), a mode of interaction optionally used by a directory system agent (DSA) that cannot perform an operation by itself. The DSA chains by invoking the operation in another DSA and then relaying the outcome to the original requester.
- A method of storing records in which each record belongs to a list or group of records and has a linking field for tracing the chain.
Challenge Handshake Authentication Protocol (CHAP)
An authentication protocol that protects against eavesdropping by encrypting the user name and password. See also Password Authentication Protocol.
An authentication method that requires users to respond to a prompt by providing information to verify their identity when they log in to the system. For example, when users forget their password, they are prompted (challenged) with a question to which they must provide an answer (response) in order to either receive a new password or receive a hint for specifying the correct password. See also knowledge-based authentication.
- The process of merging log data sets and reducing the information they contain to the minimum required to perform recovery on a particular database or group of databases.
- The process of creating a compacted version of one or more IMS log data sets by eliminating records not related to recovery, and by merging multiple changes to a single segment into a single change.
change aggregate table
In SQL replication, a type of replication target table that contains data aggregations that are based on the contents of a CD table. See also base aggregate table.
change and configuration management
A systematic approach to establish and maintain the consistent performance of a system or product throughout its lifecycle, and to effectively manage changes in that product or system.
An object authority that allows a user to perform all operations on the object except those limited to the owner or controlled by object existence authority, object management authority, object alter authority, and object reference authority. The user can add, change, and delete entries in an object, or read the contents of an entry in the object. Change authority combines object operational authority and all the data authorities.
- An indicator that displays when an object was last changed.
- A character used in the left margin to indicate that a document line is changed.
The process of capturing changes that are made to a replication source table and applying them to a replication target table. See also full refresh.
change control client
A workstation that (a) receives software and data files from its change control server and (b) installs and removes software and data files as instructed by its change control server. See also change control single node.
change control server
A system that controls and tracks the distribution of software and data files to other workstations. See also change control single node.
change control single node
A workstation that controls, tracks, installs, and removes software and data files for itself. A CC single node can also prepare software for distribution. See also change control client, change control server.
change-data table (CD table)
In SQL replication, a replication table on the Capture control server that contains changed data for a replication source table. See also synchpoint.
In SNA, a data flow control protocol in which the sending logical unit (LU) stops sending normal-flow requests, signals this fact to the receiving LU using the change-direction indicator (in the request header of the last request of the last chain), and prepares to receive requests.
changed subfile record
A subfile record into which the work station user has entered data, or a subfile record for which a write or change operation was issued with the DDS keyword SFLNXTCHG or DSPATR(MDT) in effect.
change implementation schedule
A view in change management that shows the start and end dates for changes to selected configuration items in the environment, the RFC that defines the change, and other details.
- For directory shadowing, a record of changes made to directory entries, departments, and locations for the purpose of sending only the updates and not the entire directory to collecting systems.
- The area of the checkpoint data set that contains the specific control blocks changed by the last member of the multi-access spool configuration to own the checkpoint data set.
A relationship between two artifacts. A change to either artifact affects the relationship. See also suspect relationship state.
- The process of planning for and executing changes to configuration items in the information technology environment. The primary objective of change management is to enable beneficial changes to be made with minimum disruption to services.
- The process of controlling and tracking modifications to artifacts. See also scope management.
- The process of planning (for example, scheduling) and controlling (for example, distributing, installing, and tracking) software changes over a network.
The deployment management component that decomposes aggregated installable unit (IUs) and coordinates the change management operations across the hosting environments. See also aggregated installable unit, hosting environment.
A recorded instance that is created with each write action to the repository. The change record contains metadata about all repository changes (such as who was responsible for a commit action) and can be used as a version history view of the repository.
- A request from a stakeholder to change an artifact or process. See also defect, enhancement request.
- In System Manager, an instance of a change request description that has been submitted to run or is running. A change request is uniquely identified by the change request name and a sequence number.
- A request to change some aspect of the project, project plan, activity definition, or document.
change request description (CRQD)
An i5/OS object that describes a change to be made to the computing environment. The object, which is maintained only at the central site system or systems, consists of a list of activities that describe the steps needed to make the change.
- A cohesive unit consisting of a number of related changes that need to be made together.
- A group of related changes to files or folders in a workspace or stream.
- A list of versions of elements that are associated with a Unified Change Management (UCM) activity.
- A mode by which a subscriber uses a business service.
- A link along which signals can be sent, such as the channel that handles the transfer of data between processor storage and local peripheral equipment. See also trunk.
- A WebSphere MQ object that defines a communication link between two queue managers (message channel) or between a client and a queue manager (MQI channel). See also message channel, MQI channel.
- A unidirectional, function-specific register or queue. Channels are the primary means of communication between a synergistic processor unit (SPU) and a memory flow controller (MFC) in a synergistic processor element (SPE), which in turn mediates communication with the PowerPC processor element (PPE), other SPEs, and other devices.
- A communication path through a chain to an endpoint.
- The means of distribution of a company's products. Examples are e-commerce and physical stores.
- A specialized web application within a portal to which a user can subscribe.
- In mainframe computing, the part of a channel subsystem that manages a single I/O interface between a channel subsystem and a set of control units.
A business function that can be issued on a channel. Channel actions are role specific and an authorization policy makes it possible to control which role can perform which action in a channel.
channel associated signaling (CAS)
A method of communicating telephony supervisory or line signaling (on-hook and off-hook) and address signaling on T1 and E1 digital links. See also common channel signaling.
- Pertaining to the attachment of devices directly by input/output channels to a host processor.
- Pertaining to devices attached to a controlling unit by cables, rather than by telecommunication lines. See also link-attached.
A mechanism that ensures that the channel connection is established to the correct machine. In a channel callback, a sender channel calls back the original requester channel using the sender's definition.
channel control function (CCF)
A program to move messages from a transmission queue to a communication link, and from a communication link to a local queue, together with an operator panel interface to allow the setup and control of channels.
An event reporting conditions detected during channel operations, such as when a channel instance is started or stopped. Channel events are generated on the queue managers at both ends of the channel.
A System/390 I/O channel-to-control-unit interface that has an SNA network address. A channel link can be a subarea link, a peripheral link, a LEN link, or an APPN link. See also subarea link.
A defined role in WebSphere Commerce that manages the channel hub, as well as the distributors and resellers associated with that hub, including creating and importing distributor and reseller contracts.
- The identifying number assigned to a licensed channel on the T1 or E1 trunk that connects DirectTalk to the switch, channel bank, or channel service unit.
- A number that identifies the path by which data is transferred between a particular input or output device and the processor of the computer.
- In mainframe computing, the interconnection between a channel and its associated control units.
- A single interface attaching one or more control units.
- The AIX process that executes the logic of the state table; each active caller session has one active channel process.
- In WebSphere Voice Server, the system process that manages call flow.
- An American Telephone and Telegraph (AT&T) unit that is part of the AT&T nonswitched digital data system.
- A device used to connect a digital phone line to a multiplexer, a channel bank, or directly to another device producing a digital signal. A CSU performs certain line-conditioning and equalization functions, and responds to loopback commands sent from the central office (CO). See also data service unit.
channel subsystem (CSS)
A collection of subchannels that directs the flow of information between I/O devices and main storage, relieves the processor of communication tasks, and performs path management functions.
In mainframe computing, the logical functions that a system requires to perform the function of a channel subsystem. With ESCON multiple image facility (EMIF), one channel-subsystem image exists in the channel subsystem for each logical partition (LPAR). Each image appears to be an independent channel-subsystem program, but all images share a common set of hardware facilities.
An iterative relaxation method that uses a combination of the Gauss-Seidel and Jacobi-Seidel methods. The array of discrete values is divided into subregions that can be operated on in parallel. The subregion boundaries are calculated using the Jacobi-Seidel method, while the subregion interiors are calculated using the Gauss-Seidel method. See also Gauss-Seidel.
See Clearing House Automated Payment System.
The Euro-denominated RTGS payment system operated by the CHAPS Clearing Company Ltd. and comprising a network, central message handling software, elements of members' interfaces to the network, and the Bank of England's central interface.
- A sequence of one or more bytes representing a single graphic symbol or control code.
- In a computer system, a member of a set of elements that is used for the representation, organization, or control of data. See also glyph.
- Any symbol that can be entered on a keyboard, printed, or displayed. For example, letters, numbers, and punctuation marks are all characters.
- The maximum physical boundary of a single character. For example on the IBM 3800 Printing Subsystem, a cell is made up of 24 rows with total height of 4.23 mm and 18 bit positions having a total width of 2.54 mm.
- In the GDDM function, the imaginary box whose boundaries govern the size, orientation, and spacing of individual characters to be displayed on a work station.
- As defined in ISO/IEC 10646, the place within a row at which an individual graphic character may be allocated.
- The physical width and height in pels of a font.
A named set of characters sharing an attribute associated with the name of the class. The classes and the characters that they contain are dependent on the value of the LC_CTYPE category in the current locale.
- In the C language, a character or an escape sequence enclosed in quotation marks.
- The actual character value (a symbol, quantity, or constant) in a source program that is itself data, instead of a reference to a field that contains the data. See also numeric constant.
- Data in the form of letters and special characters, such as punctuation marks.
- Data that has an associated coding representation that defines how to interpret each specific pattern of bits that are grouped into one or more bytes.
Character Data Representation Architecture (CDRA)
An IBM architecture that defines a set of identifiers, resources, services, and conventions to achieve consistent representation, processing, and interchange of graphic character data in heterogeneous environments.
character data representation identifier
A tag that is used to achieve data integrity. The Character Data Representation Architecture specifies that you should tag all character data as it flows through the system. You can tag using a short-form or a long-form identifier. A coded character set identifier (CCSID) is an example of a character data representation identifier.
A display that uses a character generator to display predefined character boxes of images (characters) on the screen. This kind of display cannot address the screen any less than one character box at a time.
- The mapping from a character (a letter of the alphabet) to a numeric value in a character code set. For example, the ASCII character code set encodes the letter "A" as 65, while the EBCIDIC character set encodes this letter as 43. The character code set contains encodings for all characters in one or more language alphabets.
- A character set consisting of a code that pairs a sequence of characters from a given set with something else, such as a sequence of natural numbers, octets or electrical pulses. Encoding facilitates the storage and transmission of text through telecommunication networks.
character entity reference
A character string of the form � or &#dddd, where dddd is the hexadecimal or decimal equivalent of the Unicode code point of a character. For example, > and > are both character entity references to the > (greater-than) sign.
A character constant, a simple character variable, an element of a character array, a character-valued function reference, a substring reference, or a sequence of the above separated by the concatenation operator and parentheses.
An area that is reserved for information that can contain any of the characters in the character set. See also numeric field.
- In word processing, the way to generate visual characters and symbols for coded data.
- In computer graphics, a function that converts the coded representation of a graphic character into the shape of the character for display or print.
In Business Graphics Utility, an invisible network of uniformly spaced horizontal and vertical lines covering the chart area. Used by the Business Graphics Utility to determine the physical dimensions of the chart and the placement of the data on it.
See character identifier.
- On a system, a 4-byte binary value. The value is a concatenation of the graphic character set global identifier followed by the code page global identifier. For example, the character identifier for German (feature 2929) is 00697 00273.
- The standard identifier for a character, regardless of its style. For example, all uppercase A's have the same character identifier.
The distance from the character reference point to the character escapement point. Character increment is the sum of the A-space, B-space, and C-space. Usually the distance between the current print position and the next print position.
A user-defined trait or property that is associated with an identity that is not commonly expressed as a name, number, address, or email. This attribute allows users to extend the product by defining customizable entity attributes that are meaningful to their data sources. See also attribute, identity.
- A character string that contains single-byte characters with an associated code page.
- A data type whose value is a sequence of characters (single byte, multibyte, or both) that can range in size from 0 bytes to 2 gigabytes less 1 byte. In general, the CLOB data type is used whenever a character string might exceed the limits of the VARCHAR data type. See also large object.
A device that prints a single character at a time. See also line printer.
The alignment of a character with respect to its character baseline, measured in degrees in a clockwise direction. See also orientation.
A defined set of characters with no coded representation assumed that can be recognized by a configured hardware or software system. A character set can be defined by alphabet, language, script, or any combination of these items.
character set identifier 65534
The character set identifier (CCSID) that is used to show that a CCSID value for data at this level of processing is not relevant. When CCSID 65534 ( FFFE ) is associated with data, a CCSID value for the data should be obtained from the tagged fields of elements that are at a lower level in the defined hierarchy. For example, a file has CCSIDs tagged for each individual field it contains. If the file is tagged with CCSID 65534, processing is based on the CCSIDs assigned to each individual field instead of the CCSID assigned to the file.
character special file
An interface file that provides access to an input or output device, which uses character I/0 instead of block I/0. See also block special file.
- A contiguous sequence of characters that are treated as a unit.
- A sequence of bytes that represents bit data, single-byte characters, or a mixture of single-byte and multibyte characters.
- A contiguous sequence of characters terminated by and including the first null byte.
In CCP, the maximum number of times that the temporary text delay character can (a) be sent to a terminal before the operation stops; or (b) be sent between the end of a receive operation and the beginning of a transmit operation.
In international character support, the dd command and various conversion subroutines that translate between extended characters and ASCII escape strings to preserve unique character information.
- In the C language, a data object having a value that can be changed while a program is running and having a data type that is a signed or unsigned character.
- Character data with a valuethat is assigned or changed while the program is running.
In Business Graphics Utility, an object containing chart characteristics, such as the chart type, chart heading, legend position, and so on. The chart format does not include the data values to be plotted. The system-recognized identifier for the object type is *CHTFMT.
chassis detect-and-deploy profile
A profile that IBM Director automatically applies to all new BladeCenter chassis when they are discovered. The profile settings include management module name, network protocols, and static IP addresses. If Remote Deployment Manager (RDM) is installed on the management server, the chassis detect-and-deploy profile also can include deployment policies.
The sending of typed messages between online participants. See also instant message.
The process of determining whether a component is appropriate or meets the necessary requirements. For example, an environment check verifies that the target systems contain the appropriate operating systems and software for an operation.
A square box with associated text that represents a choice. When a user selects the choice, the check box is filled to indicate that the choice is selected. The user can clear the check box by selecting the choice again, thereby deselecting the choice.
A user-defined constraint that specifies the values that specific columns of a base table can contain. See also constraint.
A copy of a file that corresponds to a version of an element. See also version.
- To replace an inactive document, project WBS element, scope element, requirement or resource record (with its modifications) to its repository directory so that others can view it or modify it.
- In certain software configuration management (SCM) systems, to copy files back into the repository after changing them.
The screen identifying the host screen that should be active for a connection to be considered ready to be returned to the connection pool. If the application is not on the screen specified by the checkin screen, the connection will be discarded or recycled in attempt to return the connection to the host screen specified by the checkin screen. The checkin screen is only meaningful if connection pooling is specified for a connection.
- To remove an active document, project WBS element, scope element, requirement or resource record from its repository directory in order to modify it. Only one individual may check out the same element at a time.
- In certain software configuration management (SCM) systems, to copy the latest revision of a file from the repository so that it can be modified. See also reservation version status.
- In DB2 for z/OS, a state into which a table can be put where only limited activity is allowed on the table and constraints are not checked when the table is updated. See also set integrity pending.
- A state that occurs when data for a constraint cannot be verified as valid. A constraint could be either a referential constraint or a check constraint.
- A point at which the database manager records internal status information in the log; the recovery process uses this information if the subsystem abnormally terminates.
- A place in a program at which a check is made, or at which a recording of data is made to allow the program to be restarted in case of interruption.
The periodic copying of processing information to the checkpoint data set. Checkpointing ensures that information about in-storage job and output queues is not lost in the event of a hardware or software error.
The process of resuming a job at a checkpoint within the job step that caused abnormal termination. The restart can be automatic or deferred. A deferred restart requires that the job be resubmitted. See also automatic restart, deferred restart, step restart.
A facility for restarting execution of a program at some point other than at the beginning, after the program was terminated due to a program or system failure. A restart can begin at a checkpoint or from the beginning of a job step, and uses checkpoint records to reinitialize the system.
In OSI X.400, the maximum amount of data (in units of 1024 bytes) that can be sent between two minor synchronization points. The checkpoint size is used by the X.400 reliable transfer server.
- On a diskette, data written in a section for error detection purposes.
- The sum of a group of data that is associated with a group of data and that is used for error detection.
- In TCP/IP, the sum of a group of data associated with the group and used for error checking purposes.
- A function that protects data stored in an auxiliary storage pool from being lost because of the failure of a single disk. When checksum protection is in effect and a disk failure occurs, the system automatically reconstructs the data when the system program is loaded after the device is repaired. See also device parity protection, mirrored protection.
In agile development, the peripheral participants in scrum development. This includes the product manager, testers, customers, customer advocates, and other stakeholders. See also pig role, scrum.
- A node that is subordinate to another node in a tree structure. Only the root node is not a child.
- In a hierarchy or auto-level hierarchy, a member that has at least one parent.
- In a generalization relationship, the specialization of another element, the parent. See also parent.
- Pertaining to a secured resource, either a file or library, that uses the user list of a parent resource. See also parent.
An activity that is launched during the processing of another activity, which becomes the parent activity. See also parent activity.
child business object
A business object that is contained or referenced by another business object. When the full child business object is part of its parent hierarchy, the child is contained by the parent. See also array attribute, foreign key attribute, single-cardinality attribute.
A class that inherits instance methods, attributes, and instance variables directly from the parent class (also known as the base class or superclass), or indirectly from an ancestor class.
A list of columns in a child table that relate to corresponding columns in a parent table. See also parent expression.
In explicit hierarchical locking, a lock that is held on a table, a page, a row, or a large object. Each child lock has a parent lock. See also parent lock.
A node within the scope of another node. See also parent node.
For subscriptions or recurring orders, the subordinate to the parent order. For example, a parent order is the subscription to the magazine itself, while the child order is one of the monthly issues.
child resource group
A resource group that depends on certain application services that a parent resource group provides. A child resource group is acquired on any node in the cluster only after the parent resource group has been activated. See also dependent resource groups, parent resource group.
A table that has a referential constraint to a column in a different table; the referenced table is called a parent table. See also parent table.
In AIXwindows and Enhanced X-Windows, a widget that is managed by another widget, the parent. For example, Composite widgets typically manage the Primitive children widgets attached to them.
A window that appears within the border of its parent window (either a primary window or another child window). When the parent window is resized, moved, or destroyed, the child window also is resized, moved, or destroyed. However, the child window can be moved or resized independently from the parent window, within the boundaries of the parent window.
A symbol that represents meaningful units of language, such as words or morphemes. Chinese characters are logograms, like the symbol 7, which represents the word "seven" in English or "sept" in French, for example, but which has a constant meaning across all languages. About 4000 characters are currently in use to write Chinese. Japan and South Korea also use some of these Chinese characters. Also, Chinese characters are the basis of the Japanese Kanji system.
One of the Chinese characters that represent numbers. For example, the Chinese characters for 1, 2, and 3 are written with one, two, and three horizontal brush strokes, respectively. See also Arabic numeral, Hindi numeral, number, Roman numeral.
See Client Health Information Portal.
A group type with a subclass equal to choice that is used to define a selection from a set of components. A choice type defines a choice group, which is valid when the data matches one of the components in the choice group.
See channel process.
A web browser window that does not have user interface elements such as borders, frames, menus, toolbars, or scroll bars. See also browser chrome.
See Simplified Chinese.
See Traditional Chinese.
See Compact Hypertext Markup Language.
See condition information block.
See business transaction services.
A member of the family of CICS workstation products that provide a standard set of functions for client/server computing. Each CICS client is designed to run on a particular operating system. Each can attach to a range of CICS server systems, and provides access to resources owned by the servers. See also external call interface, external presentation interface.
CICS database adapter transformer
A component of the CICS-DBCTL interface in the CICS address space. Also referred to in IMS publications as the adapter or the adapter/transformer. Its main responsibility is to communicate with the database resource adapter (DRA).
CICS dynamic storage area (CDSA)
A storage area allocated from CICS-key storage below the 16 MB line. The CDSA is used for all non-reentrant CICS-key RMODE(24) programs, all CICS-key task-lifetime storage in 24-bit storage, and CICS control blocks that reside in 24-bit storage.
CICS EJB server
One or more CICS regions that support enterprise beans. A logical CICS EJB server typically consists of multiple (cloned) CICS listener regions and multiple (cloned) CICS AORs. The listener regions and AORs may be combined into listener/AORs.
CICS flattened event format (CFE format)
A format used to write events to a temporary storage queue for testing or to a WebSphere Message Queue, from which they can be read from by a program running in or outside CICS.
Storage protection key in which CICS is given control (key 8) when CICS storage protection is used. This key is for CICS code and control blocks. CICS-key storage can be accessed and modified by CICS. Application programs in user-key cannot modify CICS-key storage, but they can read it. CICS-key storage is obtained in MVS key-8 storage. See also user-key storage.
CICS-maintained data table (CMT)
A type of CICS data table, for which CICS automatically maintains consistency between the table and its source data set. All changes to the data table are reflected in the source data set and all changes to the source data set are reflected in the data table.
CICS monitoring facility
The CICS component responsible for monitoring and producing task-related statistics information, such as task CPU usage and waits for I/O request units on an individual task basis. Reporting is divided into classes.
CICS-MQ API crossing exit
See CICS-WebSphere MQ API crossing exit.
See CICS-WebSphere MQ bridge.
- A collection of related and connected CICS regions, which helps to address the inefficiencies in having multiple, full-function CICS systems processing a single OLTP workload. See also multiregion operation.
- The largest set of CICS regions, or systems, to be manipulated by CICSPlex SM as a single entity. CICS systems in a CICSplex being managed by CICSPlex SM do not need to be connected to each other.
See CICSPlex System Manager.
CICSPlex SM address space (CMAS)
A CICSPlex SM component that is responsible for managing CICSplexes. A CMAS provides the single-system image for a CICSplex by serving as the interface to other CICSplexes and external programs. There must be at least one CMAS in each MVS image on which you are running CICSPlex SM. A single CMAS can manage CICS systems within one or more CICSplexes.
CICSPlex SM token
Unique, 4-byte values that CICSPlex SM assigns to various elements in the API environment. Token values are used by CICSPlex SM to correlate the results of certain API operations with subsequent requests.
CICSPlex System Manager (CICSPlex SM)
A system-management tool that is used to manage multiple CICS systems as if they were one. CICSPlex SM can manage independent, full-function CICS systems running on one or more connected central processor complexes (CPCs) just as easily as it can manage multiple, interconnected CICS systems functioning as a CICSplex, also on one or more connected CPCs.
CICS program library (DFHRPL)
A library that contains all user-written programs and CICS programs to be loaded and executed as part of the online system. DFHRPL includes the control system itself and certain user-defined system control tables essential to CICS operation. The library contains program text and, where applicable, a relocation dictionary for a program. The contents of this library are loaded asynchronously into CICS dynamic storage for online execution.
CICS region user ID
The user ID assigned to a CICS region at CICS initialization. It is specified either in the RACF started procedures table when CICS is started as a started task, or on the USER parameter of the JOB statement when CICS is started as a job.
- The entire collection of hardware and software required by CICS.
- In CICSPlex SM topology, a definition referring to a CICS system that is to be managed by CICSPlex SM.
- In CICSPlex SM topology, the user-defined name, description, and content information for a CICS system group. A CICS system group can be made up of CICS systems or other CICS system groups.
- In CICS business transaction services (BTS), a BTS set, that is the set of CICS regions across which BTS processes and activities may execute.
- A set of CICS systems within a CICSplex that can be managed as a single entity.
CICS Transaction Affinities Utility
A utility designed to detect potential causes of inter-transaction affinity and transaction-system affinity for those users planning to use dynamic transaction routing.
See control interval definition field.
An IBM-specified way to install and configure products on, or remove products from, remote workstations and hosts. Response files and redirected installation and configuration may be used by a CID-enabled product to eliminate or reduce user interaction with the CID-enabled product. See also response file.
See Classless Inter-Domain Routing.
See Common Internet File System.
See Common Information Model.
The code that consists of common building blocks that can be used instead of proprietary software or device-specific programming interfaces to manage devices that are compliant with the Common Information Model (CIM).
CIM object manager (CIMOM)
The common conceptual framework for data management that receives, validates, and authenticates the CIM requests from the client application. It then directs the requests to the appropriate component or service provider.
See CIM object manager.
See Common INET.
See control initiate.
cipher block chaining (CBC)
A method of reducing repetitive patterns in ciphertext by performing an exclusive-OR operation on each 8-byte block of data with the previously encrypted 8-byte block before it is encrypted.
Data that has been encrypted. Ciphertext is unreadable until it has been converted into plaintext (decrypted) with a key. See also cleartext.
- In fibre-channel technology, an established communication path between two ports, which consists of two virtual circuits capable of transmitting in opposite directions. See also link.
- One or more conductors through which an electric current can flow. See also link, packet switching.
circuit-switched data transmission service
A service that uses circuit switching to establish and maintain a connection before data can be transferred between data terminal equipment (DTE). See also packet-switched data transmission service.
- A storage area for information that replaces the oldest information stored with the most recent.
- A database log in which records are overwritten if they are no longer needed by an active database. See also archive log.
In WebSphere MQ on UNIX and Linux systems and WebSphere MQ for Windows, the process of keeping all restart data in a ring of log files. See also linear logging.
circular traceability relationship
A relationship between a requirement and itself, or an indirect relationship that leads back to a previously traced-from node. Traceability relationships cannot have circular references.
See complex instruction set computer.
- A request for reimbursement, replacement, or repair for an item or an asset that is under warranty.
- A notification to DB2 for z/OS that an object is being accessed. A claim prevents a drain from occurring until the claim is released, which usually occurs at a commit point. See also drain, logical claim.
- In C++, a user-defined data type. A class data type can contain both data representations (data members) and functions (member functions).
- In the Distributed Computing Environment (DCE), a category into which objects are placed based on their purpose and internal structure.
- A description of a set of objects that share the same attributes, operations, methods, relationships, and semantics. A class can use a set of interfaces to specify collections of operations that it provides to its environment. See also interface, object.
- A section of a module. A class can represent program text, that is, the instructions and data that are loaded into virtual storage during execution. Other classes, such as an external symbol dictionary (ESD) and a relocation dictionary (RLD), are required for binding and loading the program.
- A grouping of projects that has global properties. The properties are used to manage completed jobs, typically deleting them periodically or starting another job that performs specific cleanup tasks.
- In object-oriented design or programming, a model or template that can be used to create objects with a common definition and common properties, operations, and behavior. An object is an instance of a class.
- An object that contains specifications, such as priority, maximum processing time, and maximum storage, to control the run-time environment of a job. The system-recognized identifier for the object type is *CLS.
- The definition of an object within a specific hierarchy. A class can have properties and methods and can serve as the target of an association.
- In RACF, a collection of defined entities (users, groups, and resources) with similar characteristics.
- A collection of processes (and their associated threads) that have a single set of resource limitation values and target shares applied to them.
- A basic unit of the classification hierarchy used in the Type Designer. There are three classes: item, group, and category.
- An attribute that is related to a transaction code and a message region that is used to determine scheduling. See also message class, region class.
See transport class 0.
- See transport class 2.
- Connectionless service between ports with notification of delivery or nondelivery.
In fibre-channel technology, connectionless service between ports without notification of delivery. Other than notification, the transmission and routing of class 3 frames is identical to that of class 2 frames.
See transport class 4.
A value in a class object that controls the processing of routing steps in a job. These values include the run priority, time slice, eligibility for purge, default wait time, maximum processing unit time, and maximum temporary storage parameters.
class authority (CLAUTH)
An attribute that allows a user to define RACF profiles in a class defined in the class descriptor table. A user can have class authority to zero or more classes. See also authority.
class binding signature
A hexadecimal value that contains the class signature (obtained from the signature bank) and the inheritance level. The class binding signature is added to the Interface Definition Language (IDL) source file by the signature emitter.
class B network
In Internet communications, a network in which the two high-order (most significant and next-to-most significant) bits of the IP address are set to 1 and 0, respectively, and the host ID occupies the two low-order octets.
Class Broker for Java (CBJ)
A Java tool that allows Java applications to run on a host system that does not have a graphical user interface (GUI). Because the IBM Developer Kit for Java Remote Abstract Window Toolkit is not recommended for complex graphics or highly interactive operations, CBJ for high-performance GUI services can be used.
class C network
In Internet communications, a network in which the two high-order (most significant and next-to-most significant) bits of the IP address are both set to 1 and the next high-order bit is set to 0. The host ID occupies the low-order octet.
In RACF, an entry in the CDT. Each class descriptor associates a class name with one or more CICS resources. A class descriptor should exist for every class except USER, GROUP, and DATASET.
A diagram that shows a collection of declarative (static) model elements, such as classes, types, and their contents and relationships. See also object diagram.
classic row compression
Data row compression that is provided by static, table-level compression dictionaries. See also adaptive compression.
- In the Reusable Asset Specification (RAS), a major section of an asset providing classification schemas and descriptors that classify an asset for searching.
- A process for automatically acquiring document properties from the document content or another source.
The hierarchy of a type tree in the Type Designer. The deeper the subtype, the more specific the data characteristics are. See also compositional hierarchy.
See file plan.
- A specialized attribute used for grouping and color-coding process elements.
- In QoS, a control function that selects packets according to the content within the packet headers.
- A mechanism that describes behavioral and structural features. Classifiers include interfaces, classes, data types, and components.
Classless Inter-Domain Routing (CIDR)
A method for adding class C Internet Protocol (IP) addresses. The addresses are given to Internet Service Providers (ISPs) for use by their customers. CIDR addresses reduce the size of routing tables and make more IP addresses available within organizations.
Part of the Java virtual machine (JVM) that is responsible for finding and loading class files. A class loader affects the packaging of applications and the runtime behavior of packaged applications deployed on application servers.
- A method that creates class instances.
- In Java, a method that is called without referring to a particular object. Class methods affect the class as a whole, not a particular instance of the class. See also instance method.
- In the X Window System, the name of a class of resources, widgets, or clients. Resource and widget class names are typically defined in the programming libraries used to create the client.
- A unique identifier of a class type that becomes a reserved word within its scope.
In COBOL, a user-defined word defined in the SPECIAL-NAMES paragraph of the Environment Division that assigns a name to the proposition, for which a truth value can be defined, to verify that the content of a data item consists exclusively of those characters listed in the definition of the class-name.
- A set of characteristics (such as route security, transmission priority, and bandwidth) used to construct a route between session partners. The class of service is derived from a mode name specified by the initiator of a session.
- In fibre-channel technology, a specified set of delivery characteristics and attributes for frame delivery.
- A VTAM term for a list of routes through a network, arranged in an order of preference for their use.
- A set of link and node characteristics, associated with a session or a set of sessions, that determine the route that is selected for the sessions through an APPN network.
A database that is maintained independently by each network node, and optionally by APPN end nodes. The database contains one entry per class-of-service name. Each database entry contains: (a) A definition of the acceptable values for transmission group (TG) and node characteristics for routes described by that class-of-service name and the weight function to be used to compute the weights of nodes and TGs that meet the acceptable values; (b)The transmission priority to be used for traffic that flows on routes described by that class-of-service name.
A system object created for Advanced Peer-to-Peer Networking (APPN) support that provides the information required to assign relative priority to the transmission groups and intermediate routing nodes for an APPN session. The system-recognized identifier for the object type is *COSD.
A technique in object-oriented development to define what objects should do in the system (their responsibilities), and identify other objects (the collaborators) that are involved in fulfilling these responsibilities.
The scope of C++ class members. See also namespace scope.
A hexadecimal value obtained from a server and placed in a signature bank on the workstation. The signature bank uniquely identifies an Interface Definition Language (IDL) interface. Class signatures are added to the IDL source file by the signature emitter.
Statistical information that includes information such as the number of instances of the class in the application, the CPU time spent in that class, the number of calls made to the class, and so on.
class template declaration
A class template declaration introduces the name of a class template and specifies its template parameter list. A class template declaration may optionally include a class template definition.
class template definition
A definition that describes various characteristics of the class types that are its specializations. These characteristics include the names and types of data members of specializations, the signatures and definitions of member functions, accessibility of members, and base classes. See also base class.
A change in an object's management class or storage class when an event occurs that brings about a change in an object's service level or management criteria. Class transition occurs during a storage management cycle.
- A set of consecutive character strings that specify a characteristic of an entry. There are three types of clauses: data, environment, and file.
- The fundamental grouping of REXX syntax. A clause is composed of zero or more blanks, a sequence of tokens, zero or more blanks, and the semicolon delimiter.
- In SQL, a distinct part of a statement in the language structure, such as a SELECT clause or a WHERE clause.
See class authority.
See Common Link Access to Workstation.
See communication line block.
See Common Locale Data Repository.
clean keypoint time
CICS sets a recovery point in the ICF catalog from the keypoint directory element (KPDE) with a time earlier than, and nearest to, the minimum fuzzpoint. This time is stored in the JCT header prefix where it is known as the clean keypoint time.
- To ensure that all values in a data set are consistent and correctly recorded.
- To transform the data extracted from operational systems to make it usable by a data warehouse.
In SNA products, a network services request, sent by a system services control point (SSCP) to a logical unit (LU), that causes a particular LU-LU session with that LU to be ended immediately without requiring the participation of either the other LU or its SSCP.
The time period during which a database record that has reached its final state or condition is to remain in the database. After the cleanup period expires for such a record, database cleanup causes the record to be deleted from the database.
A procedure that instructs the system to attempt to remove software products that were partially installed and to revert to the previous version of the product. If the system successfully reverts to the previous version, it becomes the currently active version; otherwise, the software product is marked as broken.
See cause code.
See plain text.
See diagnostic code.
clear indication packet
In X.25 communications, a call supervision packet that a data circuit-terminating equipment (DCE) transmits to inform a data terminal equipment (DTE) that a call has been cleared.
clearing channel (CC)
A payment system in a settlement bank that originates, schedules, disperses, and accounts for payments. Examples are CHAPS-Euro, Euro1, and RTGSplus. Each clearing channel has a corresponding S.W.I.F.T. service code.
In the Distributed Computing Environment (DCE), a collection of directory replicas on one Cell Directory Service (CDS) server. A clearinghouse takes the form of a database file. See also control access.
See clearing channel.
A string of characters sent over a network in readable form. They may be encoded for the purposes of compression, but can easily be decoded. See also ciphertext.
clear to send (CTS)
In data communication, a signal raised by data circuit-terminating equipment (DCE) when it is ready to accept data, usually in response to request to send (RTS) being raised. See also request to send.
- In the DCE Cell Directory Service (CDS), a software component that receives CDS requests from a client application, ascertains an appropriate CDS server to process the requests, and returns the results of the requests to the client application.
- In the DCE Distributed Time Service (DTS), a software component that synchronizes the clock for its client system by requesting time values from servers, computing a new time from the values, and supplying the computed time to client applications.
The Macromedia LikeMinds Personalization Server component that accesses transaction information and generates recommendations based on users' shopping behavior as they navigate a website. WebSphere Commerce generates events based on shopping behavior, including viewing a product detail page and adding items to a shopping cart or wish list. These events are forwarded to the Clickstream Engine.
In web advertising, the number of clicks on an ad on an HTML page as a percentage of the number of times that the ad was downloaded with a page. See also impression.
A method for implementing cooperative portlets, whereby users can click an icon on a source portlet to transfer data to one or more target portlets. See also cooperative portlets, wire.
- A classifier that requests a service from another classifier. See also association.
- A person or organization that receives a deliverable or work product. See also interprocess communication.
- The user's workstation that is connected to a network. See also client-side.
- A runtime component that provides access to queuing services on a server for local user applications. The queues used by the applications reside on the server. See also WebSphere MQ fully managed .NET client, WebSphere MQ Java client, WebSphere MQ MQI client.
- A software program or computer that requests services from a server. See also host, server.
An HTTP service that serves the Java applet for the web client to web browsers. On Windows systems, the client acceptor is installed and run as a service. On AIX, UNIX, and Linux systems, the client acceptor is run as a daemon.
client acceptor daemon (CAD)
See client acceptor.
- A storage management program that initiates Common Information Model (CIM) requests to the CIM agent for the device.
- A user application, written in a supported programming language other than Java, that communicates directly with the Client daemon.
- An application that users the services of the database services by direct connection or via application servers. See also client/server architecture.
- An application written with object-oriented or Internet APIs to access content servers from Information Integrator for Content.
- An application, running on a workstation and linked to a client, that gives the application access to queuing services on a server.
- An application written with the Content Manager APIs to customize a user interface.
Client Application for Windows
A complete object management system provided with Content Manager and written with Content Manager APIs. It supports document and folder creation, storage, and presentation, processing, and access control.
client-connection channel type
The type of MQI channel definition associated with a WebSphere MQ client. See also server-connection channel type.
In the Distributed Computing Environment (DCE), the state within a Remote Procedure Call (RPC) server generated by a set of remote procedures and maintained across a series of calls for a particular client.
A daemon that manages network connections to CICS servers. It processes ECI, EPI, and ESI requests, sending and receiving the appropriate flows from the CICS server to satisfy the application requests. The Client daemon (process cclclnt) exists only on distributed platforms.
The set of drives, file systems, or volumes that the user selects to back up or archive data, using the backup-archive client. See also domain.
Client Health Information Portal (CHIP)
A tool that measures the health of the Integrated Technology (ITD) account portfolio. Analogous to the tool that a manufacturing company would use to keep track of manufacturing a physical object, CHIP keeps track of services delivery quality at the client accounts.
client logical partition
A logical partition that uses the I/O resources of another logical partition, for example, a logical partition that uses the resources of a Virtual I/O Server logical partition.
A message from a client application that is to be sent by means of a network to its destination, or a message that is routed to a client application to acknowledge the receipt of a client message by a network.
- A file server or workstation on which the backup-archive client program has been installed, and which has been registered to the server.
- In a single system image (SSI), a WebSphere Voice Response system that handles interactions with callers. A client node must have a telephony connection. It does not store application or voice data; it gets data from the server node of the SSI.
client-polling scheduling mode
A method of operation in which the client queries the server for work. See also server-prompted scheduling mode.
A process that requests services from a server process. See also server process.
- A program that uses a C++ class.
- In dynamic routing the application program, running in the requesting region, that issues a remote link request.
- In the client/server model, the front-end transaction.
A method that allows a client application, upon the loss of communication with a database server and the predefinition of an alternative server, to continue working with the original database server or the alternative server with only minimal interruption of the work.
A database record that describes the planned processing of a client operation during a specific time period. The client operation can be a backup, archive, restore, or retrieve operation, a client operating system command, or a macro. See also administrative command schedule, central scheduler, schedule.
Pertaining to the model of interaction in distributed data processing in which a program on one computer sends a request to a program on another computer and awaits a response. The requesting program is called a client; the answering program is called a server. See also distributed application.
A hardware and software design that allows the user interface and database server to reside on separate nodes or platforms on a single computer or over a network. See also client application, server-processing locale, three-tier client/server architecture model, two-tier client/server architecture model.
Pertaining to an operation that is performed on the client application and not on the server. See also client.
- A component of the client kernel that provides protocol support for the client.
- A station that consists of a control unit (a cluster controller) and the terminals attached to it.
In the Distributed Computing Environment (DCE), the surrogate code for a remote procedure call (RPC) interface that is linked with and called by the client application code. In addition to general operations such as marshaling data, a client stub calls the RPC runtime library to perform remote procedure calls and, optionally, to manage bindings.
client system-options file
A file, used on AIX, UNIX, or Linux system clients, containing a set of processing options that identify the servers to be contacted for services. This file also specifies communication methods and options for backup, archive, hierarchical storage management, and scheduling. See also client user-options file.
The client programs and consoles that are used for development, administration, and other tasks for the InfoSphere Information Server suite and product modules and the computers where they are installed.
client user-options file
A file that contains the set of processing options that the clients on the system use. The set can include options that determine the server that the client contacts, and options that affect backup operations, archive operations, hierarchical storage management operations, and scheduled operations. This file is also called the dsm.opt file. For AIX, UNIX, or Linux systems, see also client system-options file. See also client system-options file.
In the NetView Graphic Monitor Facility, a workstation that depends on a server workstation to provide it with views and status information. A client workstation receives status information from the server workstation over an LU 6.2 session.
See Client Input Output Sockets.
See calling line identification presentation.
- In computer graphics, removing those parts of display elements that lie outside of a given boundary.
- In the GDDM function, the process of cutting off the image at the border of the display but allowing the coordinates of the lines to extend beyond.
In GL, primitive space that is mapped to normalized device coordinates before clipping occurs. The clipping planes x=+/-w; y=+/-w; or z=+/-w correspond to the left, right, top, bottom, near, and far planes bounding the viewing frustum.
See command list.
A word that syntactically functions separately but is phonetically connected to another word. A clitic can be written as connected or separate from the word it is bound to. Common examples of clitics include the last part of a contraction in English 'wouldn't' or 'you're'.
The process by which a complex word or expression is formed by attaching a clitic to another word. A common example of cliticization includes attaching a clitic to a verb, for example: "je t'aime" in French.
See Collaborative Lifecycle Management.
See control language module.
See connectionless-mode network service.
CLNS path maintenance
In OSI, an option of whether or not to maintain a CLNS path to an adjacent node permanently (until OSI Communications Subsystem is restarted), or release the path when no active CLNS connection uses it. These connections include both network management and directory service connections and connections between customer programs.
A customization option that restricts access to selected information in the cube. The cloak option removes a category and its descendants from a dimension, but summarizes the values in the ancestor categories.
See character large object.
- In data communication, equipment that provides a time base used in a transmission system to control the timing of certain functions, such as sampling, and to control the duration of signal elements.
- A device that generates periodic signals used for synchronization.
- In communications, a method of controlling the number of data bits sent on a communications line in a specified time.
- In binary synchronous communication, the use of clock pulses to control synchronization of data and control characters.
The elapsed time in real time. Clock time differs from CPU time as thread switches and process context switches introduce uncertainty in performance calculation; clock time does not account for this execution behavior.
- An identical copy of the latest approved version of a component, with a new unique component ID.
- A copy of a volume on a server at a particular point in time. The contents of the copy can be customized while the contents of the original volume are preserved.
- To prepare a reference computer and create a system profile ready for deployment. See also unattended setup.
- A copy of an application, created so that it can be customized while the original is retained.
- An operation that enables an administrator to replicate profiles. This capability simplifies the task of creating multiple profiles with similar properties.
- An identical copy of the data and configuration of a server at a particular point in time.
- To preserve the characteristics of the original but personalize instance-specific data. The result is a new instance of an entity (for example, of a virtual disk, a virtual computer system, or an operating system) rather than a backup of the original.
cloned CICS region
CICS regions that are identical in every respect, except for their identifiers. This means that each clone has exactly the same capability. For example, all clones of an application-owning region can process the same transaction workload.
A table that is structurally identical to a base table. The base and clone table each have separate underlying VSAM data sets, which are identified by their data set instance numbers. See also base table.
- To end an activity and remove that window from the display.
- To end processing by ending the connection between the file and a program.
A registration process in which only an administrator can register workstations as client nodes with the server. See also open registration.
closed user group (CUG)
In data communication, a group of users who can communicate with other users in the group, but not with users outside the group. A data terminal equipment (DTE) may belong to more than one closed user group. See also bilateral closed user group.
In the GDDM function, a line added by the system to enclose an area being filled with a pattern, in instances when the routines that precede the GSENDA routine fail to form an enclosed area.
A computing platform where users can have access to applications or computing resources, as services, from anywhere through their connected devices. A simplified user interface and application programming interface (API) makes the infrastructure supporting such services transparent to users.
See infrastructure as a service.
A description of resources to be provided by a cloud. Typically, a cloud request consists of a list of cloud images to be provided by the cloud and information about how those cloud instances are to be configured.
- A network of virtual servers that store data, usually hosted by third parties.
- A storage resource provided by a cloud, or the storage of data on virtual public or private servers in the cloud.
See create link pack area.
See control language procedure.
See control language program.
See common language runtime.
See Continuous Linked Settlement.
See control logical unit.
See cluster-receiver channel.
See cluster-sender channel.
- In SNA, a group of stations that consist of a controller (cluster controller) and the workstations attached to it.
- In Microsoft Cluster Server, a group of computers, connected together and configured in such a way that, if one fails, MSCS performs a failover, transferring the state data of applications from the failing computer to another computer in the cluster and reinitiating their operation there.
- A loosely coupled collection of independent systems (or nodes) organized into a network for the purpose of sharing resources and communicating with each other. See also GPFS cluster.
- A group of storage locations allocated at one time.
- See clustered system.
- A group of application servers that collaborate for the purposes of workload balancing and failover.
- A page-size (4096-byte) buffer provided by the mbuf management facility to the various layers of communication software in AIX.
- A collection of complete systems that work together to provide a single, unified computing capability.
- A group of servers connected by a network and configured in such a way that if the primary server fails, a secondary server takes over.
- A group of appliances in which one appliance acts as the central appliance, and the other appliances act as its clients.
- A set of independent systems or logical partitions (called nodes) that are organized into a network for the purpose of sharing resources and communicating with each other.
- A set of nodes that must be placed close together by a layout algorithm.
- In WebSphere MQ, a group of two or more queue managers on one or more computers, providing automatic interconnection, and allowing queues to be advertised among them for load balancing and redundancy.
- A data set defined to VSAM. A cluster can be a key-sequenced data set, an entry-sequenced data set, or a relative record data set.
- A set of independent systems or nodes that are organized into a network. The purpose of the cluster is to define a set of resources, nodes, networks, and storage devices that will keep applications highly available.
cluster caching facility (CF)
A subsystem, typically on a dedicated computer or LPAR, that assists in global locking and group buffer pool management for a DB2 pureCluster instance on Linux and AIX operating systems. See also preferred primary cluster caching facility, primary cluster caching facility, secondary cluster caching facility.
A user definition of all cluster components. Component information is stored in the ODM. Components include cluster name and ID, and information about member nodes, network interface, and network modules. See also dynamic automatic reconfiguration.
cluster configuration database
See Object Data Manager.
A virtual collection of physical elements such as computer systems and logical elements such as software instances that can provide services to a client as a single unit. See also cluster domain node.
An index whose sequence of key values closely corresponds to the sequence of rows stored in a table. The degree of correspondence is measured by statistics that are used by the optimizer.
A catalog entry that contains the following information about a key-sequenced or entry-sequenced Virtual Storage Access Method (VSAM) cluster: ownership, cluster attributes, and the cluster's passwords and protection attributes. A key-sequenced cluster entry points to both a data entry and an index entry; an entry-sequenced cluster entry points to a data entry only. See also alternate-index entry.
See cluster configuration.
clustering block index
See dimension block index.
An index that determines how rows are physically ordered (clustered) in a table space. If a clustering index on a partitioned table is not a partitioning index, the rows are ordered in cluster sequence within each data partition instead of spanning the partitions.
- A software daemon that runs on every node in the cluster and is responsible for responding to failures and coordinating recovery actions.
- The node that monitors node status using disk leases, detects failures, drives recovery, and selects file system managers. The cluster manager is the node with the lowest node number among the quorum nodes that are operating at a particular time.
An identically configured copy of an object, such as an application server. Cluster members can be used for workload management purposes, for example, to support horizontal scaling and vertical scaling.
An IBM designation that defines certain high-availability requirements that are applied to a software product either by itself or in combination with other software products. A solution that satisfies the technical criteria of these requirements can be validated with IBM and licensed to be marketed with IBM's ClusterProven trademark.
A local queue that is hosted by a cluster queue manager, and defined as a target for messages being put from an application connected to any queue manager within the cluster. All applications retrieving messages must be locally connected.
cluster-receiver channel (CLUSRCVR)
A channel on which a cluster queue manager can receive messages from other queue managers in the cluster, and cluster information from the repository queue managers.
Any part of the system that is available across multiple cluster nodes. The two types of system resources that can be resilient are the following: Objects that are kept up to date by using replication. A resilient application and its associated IP address, which can be switched.
cluster resource group (CRG)
A collection of related cluster resources that defines actions to be taken during a switchover or failover operation of the access point of resilient resources. The group describes a recovery domain and supplies the name of the cluster resource group exit program that manages the movement of an access point.
A Windows (TM) service that manages the cluster specific activities and is installed on each node of the cluster. The components of the Cluster service provide high availability, easy management and enhanced scalability for Windows.
The high availability services, such as the cluster manager and other services running on the nodes, that monitor the cluster resources. The resources and data maintained on the cluster for access by clients and their applications are cluster services.
cluster transmission queue
A transmission queue that holds all messages from a queue manager destined for another queue manager that is in the same cluster. The queue is called SYSTEM.CLUSTER.TRANSMIT.QUEUE.
See color lookup table.
See control language variable.
See conversion mode*.
See CICSPlex SM address space.
A communications link between one CICSPlex SM address space (CMAS) and another CMAS or a remote managed application system (remote MAS). CMAS links are defined when CICSPlex SM is configured.
See Configuration Management Database.
In the Windows PowerShell environment, a single function command-line tool that can be called directly from the command line in the shell and run under the context of the shell, not as a separate process.
See Central Messaging Engine Administrator.
CME Admin node
See Configuration Console.
See compiled message flow.
See control message interface.
See Common Management Information Protocol.
The VTAM implementation of the Common Management Information Protocol (CMIP), which provides a common set of program services for application programmers to use in writing CMIP application programs. These services include controlling associations, converting basic encoding rules (BER) syntax, and validating protocols.
See common management information service.
See configuration-managed item.
See complementary metal-oxide semiconductor.
See container-managed persistence.
See cross memory resource-owning task.
CMS extended parameter list
A type of parameter list available in the CMS environment consisting of a string composed exactly as the user typed it at the terminal. There is no tokenization performed on the string.
See CICS-maintained data table.
See communication network management.
See composite network node.
See change number of sessions.
See communication name table.
- See cloud-oriented architecture.
- Confirm on arrival.
See confirm-on-arrival report.
Pertaining to viewing a group of objects from an abstract or high level. See also fine-grained.
The concept of VTAM's writing PIUs to NCP and reading PIUs from NCP with a single channel program. The values coded for the DELAY keywords on the VTAM PCCU definition statement and the NCP LINE definition statement affect the degree of coattailing. A user can increase the probability of VTAM's writing and reading PIUs with a single channel program by adjusting these DELAY keywords. An increase in the degree of coattailing improves channel efficiency but may increase response time.
The concept of VTAM's writing PIUs to NCP and reading PIUs from NCP with a single channel program. The values coded for the DELAY keywords on the VTAM PCCU definition statement and the NCP LINE definition statement affect the degree of coattailing. A user can increase the probability of VTAM's writing and reading PIUs with a single channel program by adjusting these DELAY keywords. An increase in the degree of coattailing improves channel efficiency but may increase response time.
See Common Business Oriented Language.
COBOL reserved-word file
In EGL, a user-defined text file that contains reserved words other than EGL reserved words. If an EGL variable name matches a reserved word, EGL aliases the variable name at generation time, as reflected in the generated output.
The interaction of multiple users sharing information about their individual web interactions. With this interaction users can share a view of the same web page simultaneously and share further interactions with the web page they are jointly viewing.
See capacity on demand.
See confirm on delivery.
- A system of bit patterns to which a specific graphic or a control meaning has been assigned.
- A representation of a condition, such as an error code.
- A set of instructions for a computer.
- A number that uniquely identifies a catalog entry in the WebSphere Commerce system. A product code is used as the prefix for creating individual SKU codes.
- To write instructions for the computer; to program.
See content assist.
Works together with the code attribute in the APPLET tag to give a complete specification of where to find the main applet class file: code specifies the name of the file, and codebase specifies the URL of the directory containing the file.(Sun)
coded character set (CCS)
A set of unambiguous rules that establishes a character set and the one-to-one relationships between the characters of the set and their coded representations. See also invariant character set.
coded character set identifier (CCSID)
A 16-bit number that includes a specific set of encoding scheme identifiers, character set identifiers, code page identifiers, and other information that uniquely identifies the coded graphic-character representation. See also binary string.
coded character set identifier 65534 (CCSID 65534)
The coded character set identifier (CCSID) that is used to show that a CCSID value for data at this level of processing is not relevant. When CCSID 65534 (X'FFFE') is associated with data, a CCSID value for the data should be obtained from the tagged fields of elements that are at a lower level in the defined hierarchy. For example, a file has CCSIDs that are tagged for each individual field it contains. If the field is tagged with CCSID 65534, processing is based on the CCSIDs assigned to each individual field instead of the CCSID assigned to the file.
coded character set identifier 65535 (CCSID 65535)
An identifier that is used to show that the associated data should not be processed as coded-graphic-character data. CCSID 65535 ( FFFF ) cannot be represented in long form. Data that is associated with CCSID 65535 should be interpreted as actual representation is unknown as defined in Character Data Representation Architecture-Level 2, IBM Registry. You cannot convert data that is associated with CCSID 65535 from one CCSID to another. The coded character set identifier (CCSID) that is used to show that data associated with the CCSID should not be processed as coded-graphic-character data.
coded font local identifier
A 1-byte identifier that the Map Coded Font structured field assigns to each coded font it selects. The identifier is then specified in the text-control sequence that precedes the string of text to be printed with the particular font. See also local identifier.
coded graphic character set global identifier (CGCSGID)
A 4-byte binary or a 10-digit decimal identifier consisting of the concatenation of a GCSGID and a CPGID. The CGCSGID identifies the code point assignments in the code page for a specific graphic character set, from among all the graphic characters that are assigned in the code page.
coded graphic character-set ID
A 10-digit identifier (two 5-digit identifiers separated by a space) that is the combination of a graphic character-set ID and a code-page ID. See also code page ID.
code division multiple access (CDMA)
A form of multiplexing where the transmitter encodes the signal using a pseudo-random sequence, which the receiver also knows and can use to decode the received signal. Each different random sequence corresponds to a different communication channel.
An overlay loaded in a printer in a coded format, rather than as a raster pattern. See also raster pattern overlay.
code element set
The result of applying rules that map a numeric code value to each element of a character set. An element of a character set may be related to more than one numeric code value but the reverse is not true. However, for state-dependent encodings the relationship between numeric code values to elements of a character set may be further controlled by state information. The character set may contain fewer elements than the total number of possible numeric code values; that is, some code values may be unassigned. X/Open.
In Process Designer, the specification of an action through WebSphere business integration API methods or other Java code. A developer can add or customize default code fragments. Process Designer embeds each code fragment in the code it generates to produce a whole program. See also action, action node.
The process of initially generating code from model information or subsequently updating code with model changes. Code changes might be overwritten by changes in the model. See also round-trip engineering.
In System Manager, the type of product load that contains all of the product code that does not require translation to other languages, such as the code for displays, menus, and messages. However, if a product is never going to be translated, the code may contain all the product code.
- An ordered set of up to 256 predefined display symbols. The first 32 code points of each code page are reserved for control codes and are the same for all code pages, leaving up to 224 distinct display symbols per page.
- A specification of code points from a defined encoding structure for each graphic character in a set or in a collection of graphic character sets. Within a code page, a code point can have only one specific meaning. See also invariant character set.
- A particular assignment of code points to graphic characters. Within a given code page, a code point can have only one specific meaning. A code page also identifies how undefined code points are handled. See also code point.
code page ID
A 5-digit registered identifier used to specify a particular assignment of code points to graphic characters. The code-page ID is the second part of the QCHRID system value or the CHRID parameter value. See also coded graphic character-set ID.
- An identifier in an alert description that represents a short unit of text. The code point is replaced with the text by an alert display program.
- In QoS, pertaining to a specific value in the Differentiated Services field of a data packet that signals to a network the behavior that is assigned to that packet.
- A unique bit pattern that represents a character in a code page. See also code page.
- For SNA alerts, a 1-or 2-byte hexadecimal code that designates a particular piece of text to be displayed at the focal point.
A project in a Visual Studio solution. One or more projects are contained in one solution. Most projects represent the collection of files that are used to build a component. A specific programming language is often used to code all project items throughout a project. It is possible to have multiple-language projects in VS.NET. Note that, you cannot use multiple languages within one project item. See also solution.
- A set of unambiguous rules that establish a character set and the one-to-one relationship between each character of the set and its bit representation.
- See code page.
A feature that enables merging of model and code changes. See also round-trip engineering.
A textual definition of the operation body code that is used when generating source code for a model element. This allows the source code to be reused and shared throughout a project or across projects. A code template consists of source code and embedded script logic, very much like an HTML page.
The fundamental binary width in a computer architecture that is used for representing character data, such as 7 bits, 8 bits, 16 bits, or 32 bits. Depending on the character encoding form that is used, each code point in a coded character set (CCS) can be represented by one or more code units.
See confirm-on-delivery report.
- The ability of two or more different versions of WebSphere MQ to function on the same computer.
- During migration, the state during which two releases exist in the same data sharing group.
- The ability of two or more entities to function in the same system or network.
- The state during which two QMF releases exist in the same database.
The union of components of the same kind that depend on one another. See also coupling.
For programs that are resident on backup systems, a configuration in which a copy of the program is installed for backup purposes, but has not been started. See also hot backup, warm backup.
- A method of starting CICS where all local resources are refreshed, but information relating to remote systems and resource managers is preserved.
- The starting of IMS when it is initialized for the first time or when some error condition prevents a warm or emergency restart. See also emergency restart, normal restart.
- A process in which the system is initialized. All jobs that were active or in the job queue at the time of the cold start are removed from the system. See also warm start.
- A process by which DB2 restarts without processing any log records. See also warm start.
- The start of a database management system without preprocessing before-images or after-images.
- The process of starting an existing data replication configuration without regard for prior replication activity, causing reinitialization of all subscriptions.
- The process of starting a system or program using an initial program load procedure.
- A diagram that shows the exchange of messages between two or more participants in a BPMN model.
- A conceptual collection or grouping of model elements, classifiers, or primitive types that are unified in accomplishing some objective within the context of the collaboration.
- A WebSphere business integration system component that contains business logic describing a distributed business process. Collaborations are used to coordinate and extend the business processes of disparate enterprise software products and to facilitate meaningful data exchange between them. Collaborations use business objects to exchange and manipulate data. See also business logic.
- The ability to connect customers, employees, or business partners to the people and processes in a business or organization, in order to facilitate improved decision-making. Collaboration involves two or more individuals with complementary skills interacting together to resolve a business problem.
A runtime instance of a workflow for a specific hierarchy or catalog. A collaboration area provides a staging area where entries from that container can be modified without affecting the original entry. These changes can be copied back to the original or discarded when the entry completes the workflow. Each collaboration area must be associated with a workflow (but not vice versa). See also container, workflow.
See communication diagram.
An object created from a collaboration template that is executable after it is configured and bound. Each collaboration object is configured for a specific business environment to integrate specific applications or software products. See also binding, collaboration template.
An executable set of collaboration objects bound together to represent a combined business process. See also event isolation.
A configuration option that, with the full set of such options, enables an administrator to customize the business processing behavior of a specific collaboration object. Collaboration properties are set in System Manager. See also property.
The logic and framework of a collaboration that provides the definition of its actions. A collaboration template consists of Java code, which Process Designer generates and the developer can customize. The template consists of scenarios, which specify sets of actions. A collaboration template is not executable; it is a Java class used to instantiate executable collaboration objects. See also action, collaboration object.
Personalization technology that calculates the similarity between users based on the behaviors of a number of other people and uses that information to make recommendations for the current user.
Collaborative Lifecycle Management (CLM)
The integration of products on Jazz technology to connect the work of analysts with development and test teams. These integrations provide a common approach to artifact linking, dashboards, security, and user interface frameworks.
A highly personalized desktop-to-web tool designed for specific audiences and communities of users that organizes information, applications, and services for effective community building at the corporate level and for personal use by individuals.
The configuration of the part of a deployment environment that delivers required behavior to an application module. For example, a messaging collaborative unit includes the host of the messaging engine and deployment targets of the application module, and provides messaging support to the application module.
collapsed data node
A parent data node that hides its child nodes. See also expanded data node.
A subprocess that hides its flow details. The collapsed subprocess object has a marker that distinguishes it as a subprocess, rather than a task. The marker is a small square with a plus sign inside.
- To determine the sorting order of strings of characters.
- To combine and arrange in order.
- One or more characters that match a sequence in a regular expression.
- The smallest entity used to determine the logical ordering of strings. A collating element consists of either a single character, or two or more characters collating as a single entity. The value of the LC_COLLATE category in the current locale determines the current set of collating elements. See also collating sequence.
- The relative ordering of collating elements as determined by the setting of the LC_COLLATE category in the current locale. The character order, as defined for the LC_COLLATE category in the current locale, defines the relative order of all collating elements, such that each element occupies a unique position in the order.
- An ordering assigned to a set of items, such that any two sets in that assigned order can be collated.
- A specified arrangement used in sequencing. See also collating element.
- The sequence in which the characters are ordered for the purpose of sorting, merging, comparing, and processing indexed data sequentially.
- In Ada language, the entire set of objects created by evaluation of allocators for an access type.
- Data obtained by a collector that represents the system status at a given point in time. Collections are timestamped and stored in a management collection object. See also schema.
- An instance of a collection data type; a group of elements of the same data type stored in a SET, MULTISET, or LIST data type.
- An abstract class without any ordering, element properties, or key properties.
- A group of packages that have the same qualifier.
- In a Tivoli environment, a container that provides a single view of related resources.
- A group of objects that typically have similar performance, availability, backup, retention, and class transition characteristics. A collection is used to catalog a large number of objects which, if cataloged separately, could require an extremely large catalog.
- A group of objects with a similar set of management rules.
- A logical container for storing archived documents, as well as the retention and access policies that specify how the documents are managed. Each collection is represented by a separate file system. See also file archive collection, System Storage Archive Manager collection.
- A set of data sources and options for crawling, parsing, indexing, and searching those data sources.
A database cursor that has an IBM Informix ESQL/C collection variable associated with it and provides access to the individual elements of a column whose data type is a collection data type.
collection data type
A complex data type whose instances are groups of elements of the same data type, which can be any opaque data type, distinct data type, built-in data type, collection data type, or row data type. See also complex data type.
A type of page in the administrative console that displays a collection list of administrative objects. From this type of page, you can typically select objects to act on or to display other pages for.
collection processing engine (CPE)
An engine that performs collection processing through the combination of a collection reader, an optional CAS Initializer, an analysis engine, and one or more CAS Consumers.
collection processing manager (CPM)
A module in the framework that manages the execution of collection processing, routing CASs from the collection reader to an analysis engine, and then to the CAS Consumers. The CPM provides feedback such as performance statistics and error reporting, and may implement features such as parallelization.
A System i Navigator tool that collects performance data independent of the system monitors in System i Navigator. This function is intended for subsequent analysis by performance personnel either by writing queries against the collected data or by reviewing reports produced by the Performance Tools for i5/OS licensed program.
An IBM Informix ESQL/C host variable or SPL variable that holds an entire collection and provides access, through a collection cursor, to the individual elements of the collection.
- A set of WebSphere DataPower XC10 appliances that are grouped together for scalability and management purposes.
- A set of brokers that are fully interconnected and that form part of a multi-broker network for publish/subscribe applications.
A communication operation that involves more than two processes or tasks. Broadcasts and reductions are examples of collective communication operations. All tasks in a communicator must participate.
- An object that determines what information is collected from, or assigned to, server resources. The information is specified through properties in the collector. The collector, assigned to a server, serves as a specification for the server!/s manifest.
- A generic name for a program that at regular intervals collects data about the status of the system.
For directory shadowing, a system that receives initial or changed Enterprise Address Book (EAB) data from a supplier system in a network. See also supplier system.
- An unwanted condition that results from concurrent transmissions on a channel, causing the transmissions to be unintelligible.
- In X.25 communication, a condition that occurs when data terminal equipment (DTE) and data circuit-terminating equipment (DCE) simultaneously transmit packets (for instance, a clear request packet and a clear indication packet) over the same logical channel. The types of collision are clear collision, call collision, or reset collision.
In carrier sense multiple access with collision avoidance (CSMA/CA), the process of sending a jam signal and waiting for a variable time before transmitting data. The process is designed to avoid two or more simultaneous transmissions.
In Performance Tools, a counter that counts the total number of times the terminal equipment (TE) detected that the frames it transmitted were damaged by another TE trying to use the same bus.
The result of two tables being joined under one of two conditions. The first condition is where the tables are located in a single-partition database partition group in the same database partition. The second condition is where the tables are in the same database partition group, the number of partitioning columns is the same, the columns are partition compatible, both tables use the same partitioning function, and pairs of the corresponding partitioning key columns participate in the equijoin predicates. See also partition-compatible join.
- The process of keeping all data belonging to a single-client file space, a single client node, or a group of client nodes on a minimal number of sequential-access volumes within a storage pool. Collocation can reduce the number of volumes that must be accessed when a large amount of data must be restored. See also anti-collocation, distribution preference.
- See table collocation.
In computer systems, a color is usually represented by a triplet called RGB (red, green, and blue) signals. Most computer monitors require RGB signals to drive the 3-colored phosphors of a color monitor.
In Enhanced X-Windows, an entry in a color map that consists of three values based on red, green, and blue intensities. The values are 16-bit, unsigned numbers. Zero represents the minimum intensity. The values are scaled by the server to match the particular display in use.
color lookup table (CLUT)
See color map.
- A lookup table in which each index is associated with a red, green, and blue value.
- A set of color cells. A pixel value indexes the color map to produce RGB-intensities. A color map consists of a set of entries defining color values that, when associated with a window, is used to display the contents of the window.
color mapping table
An architected MO:DCA object that is used to map color values specified in a source color space to color values specified in a target color space. This object is loaded into printers that support the color mapping table.
- See color map.
- A set of colors that can be displayed on the display at one time. This can be standard set used for all images or a set that can be customized for each image.
- In Business Graphics Utility, the range of colors defined by hue, lightness, and saturation to be used when a chart is displayed on a graphics-capable display.
A progression of colors in a color map. Most color ramps are smooth and have only a small number, if any, of discontinuities. For instance, if the full set of colors of the rainbow were loaded into the color map, that would constitute a color ramp.
The ability to specify a color other than black to print data in more than one color. Some printers support selection of several colors, depending upon the color of ribbon installed in the printer. Other printers support the selection of black or "color of media," which can cause white lettering on a background that has been shaded black, for example.
See color map.
- A character position within a print line or on a display. The positions are numbered consecutively from 1, starting at the leftmost character position and extending to the rightmost position.
- A subdivision of a band, such as baseline or actual.
- In a relational database, a field defined for a given record or row.
- The vertical component of a database table. A column has a name and a particular data type (for example, character, decimal, or integer).
column distribution value
See data distribution.
See aggregate function.
In a federated system, a parameter of the CREATE NICKNAME and ALTER NICKNAME statements that describes the values in certain columns of the data source object that a nickname references. This information is added to the global catalog and used by the query optimizer to develop better access plans.
A unit of horizontal measure related to characters in a line. It is assumed that each character in a character set has an intrinsic column width independent of any output device. Each printable character in the portable character set has a column width of one. The standard utilities, when used as described in this document set, assume that all characters have integral column widths. The column width of a character is not necessarily related to the internal representation of the character (numbers of bits or bytes). The column position of a character in a line is defined as one plus the sum of the column widths of the preceding characters in the line. Column positions are numbered starting from 1. X/Open.
A level attribute that has certain properties, irrespective of the reference structure level. For example, the level attribute that provides the identifier for each row of data is represented by the $ID column token.
The formatting of values in a report so that the values occupy several lines within a column. Column wrapping is often used when a column contains a value with a length that exceeds the column width.
A mathematical science about countable elements. Typical results of combinatorics are formulas to compute how often certain combinations of distinguishable objects occur. The results from combinatorics are often used to analyze the run time (speed) of an algorithm.
combined code page
See mixed code page.
combined function IOP (CFIOP)
A type of IOP that can connect to a variety of different input/output adapters to support disk units, a console, and communications hardware. It contains some multifunction IOP (MFIOP) capabilities as well as Ethernet and token-ring controllers. This processor does not contain server processor functions. See also multifunction IOP.
In high-level data link control (HDLC), the part of a data station that supports the combined control functions of the data link, generates commands and responses for transmission, and interprets received commands and responses.
See microfilm device.
Comit(& consultatif international t(&l(&graphique et t(&l(&phonique (CCITT)
See International Telecommunication Union Telecommunication Standardization Sector.
- A unique pattern (either binary 1100000 or binary 0011111) used in 8B/10B encoding to specify character alignment within a data stream. See also K28.5.
- In REXX, a token that represents the continuation character, a separator of arguments in an argument list, or a separator in a parsing template.
An expression that contains two operands separated by a comma. Although the compiler evaluates both operands, the value of the right operand is the value of the expression. If the left operand produces a value, the compiler discards this value.
- In SDLC, a frame transmitted by a primary station. Asynchronous balanced mode stations send both commands and responses. See also response.
- In data communication, an instruction represented in the control files of a frame and transmitted by a primary or combined station. It causes the addressed station to run a data link control function.
- A request from a terminal or automated operator for the performance of an operation or service, or for the execution of a particular program. See also response.
- In SNA, any field set in the transmission header (TH), request header (RH), or request unit (RU) that states an action or that starts a protocol.
- A request to perform an operation or run a program. When parameters, arguments, flags, or other operands are associated with a command, the resulting character string is a single command.
- A statement used to initiate an action or start a service. A command consists of the command name abbreviation, and its parameters and flags if applicable.
command attention key (CA key)
In DDS, a keyboard key that can be specified with the CA keyword to request the function specified by the keyword. Data is not returned to the system. See also command function key.
The process of authorizing a network operator to use various commands. See also NetView command authorization table, Resource Access Control Facility, System Authorization Facility.
- A proxy that can invoke a single operation using an execute() method.
- A bean that contains the programming logic to handle a particular request.
The portion of the segment search argument that enables an application program to access a database segment based on some variation in either the call function, the segment qualification, or the setting of parentage.
An object that contains the definition of a command (including the command name, parameter descriptions, and validity-checking information) and identifies the program that performs the function requested by the command. The system-recognized identifier for the object type is *CMD.
command definition statement
A source statement that defines keywords and parameter values, qualified names, elements in a list, parameter requirements and interrelationships, and prompt text for a command. Command definition statements are used to create a CL command.
An RRSF function that allows a user to issue a command from one user ID and direct that command to run in the RACF address space on the same system or on a different RRSF node, using the same or a different user ID. See also automatic command direction, directed command.
- A system file that contains one or more statements or commands.
- In PC operating systems, a file with a file name extension of .CMD that functions like a batch file in DOS.
- In RJE, a remote job input stream that can contain host system commands and job control language (JCL), data, and RJE control statements (READFILE or EOF). See also data file.
command function key (CF key)
In DDS, a keyboard key that can be specified with the CF keyword to request the function specified by the keyword. Data is returned to the system. See also command attention key.
In the NetView Graphic Monitor Facility, a numeric identifier that is assigned to a network resource by its controlling resource manager. Each resource manager is assigned a range of values that can be defined.
An interface for running QMF commands. The QMF commands can only be issued from within an active QMF session. See also callable interface.
See command language interpreter.
command language translator
A batch program (part of CICS program preparation utilities) that prepares a source application program that includes EXEC CICS or EXEC DLI commands. The translator program translates the EXEC commands into CALL statements in the language of the application program. The translator output can be compiled or assembled in the usual way.
Pertaining to an operation that is performed for a specific command in a program. For example, a Monitor Message (MONMSG) command that immediately follows a specific command in a CL program is a command-level MONMSG command. See also program level.
See application programming interface.
A transaction that enables CICS commands to be entered, syntax-checked, and executed interactively at a 3270 screen. It provides a reference to the syntax of the whole of the CICS command-level application programming and system programming interface.
A part of a command line, delimited by white space. Arguments are used to specify detailed behavior to a program. They are usually either command line options selecting variations in program operation, or path names of files to be processed.
A component used to run selected Tivoli Workload Scheduler master domain manager commands from any workstation where it is installed. The command-line client does not need to be installed on the master domain manager and is a selectable option for installation on other nodes in the network. See also master domain manager.
command-line interface (CLI)
A type of computer interface in which the input command is a string of text characters. See also Copy Services command-line interface.
- A language for performing TSO tasks.
- A list of commands and statements designed to perform a specific function for the user.
In an IMSplex, the IMS that Operations Manager (OM) designates to process a command when a command is issued through the OM API. Commands are routed to all IMS systems that are registered for the command and, if the command requires only one IMS to process it, the command master processes the command.
- In WebSphere MQ for z/OS, a character string that identifies the queue manager to which WebSphere MQ for z/OS commands are directed, and from which WebSphere MQ for z/OS operator messages are received.
- A 1- to 8-character command identifier. The command prefix distinguishes the command as belonging to an application or subsystem rather than to z/OS.
command prefix facility (CPF)
An z/OS facility that provides a registry for command prefixes. CPF ensures that two or more subsystems do not have the same or overlapping command prefixes for operator commands.
A module designed to perform a specific function for the user. Users can write command processors in assembler language or in a high-level language. Command processors are started as commands.
- A character that permits a z/OS console operator or an IMS subsystem user to route DB2 commands to specific DB2 for z/OS subsystems.
- In MVS, a character that denotes an operator command.
A form of security checking that can be specified for the PERFORM, COLLECT, DISCARD, INQUIRE, and SET commands. Command security operates in addition to any transaction security or resource security specified for a transaction. For example if a terminal invokes a transaction that the user is authorized to use, and the transaction issues a command that the user is not authorized to use, the command fails with the NOTAUTH condition.
command significant status
The command status that is associated with a resource, for example, the status of STOP, TRACE, and MFSTEST commands. If a resource structure is defined, the recovery of command significant status is always maintained globally by the Resource Manager (RM) in the resource structure. See also end-user significant status.
- In query management, a character string that contains a query command.
- A request to perform an operation, along with the operands that provide all instructions needed for running the operation.
The verb or verb/object portion of a site-defined command. After command synonyms are defined and activated in the QMF profile, users can enter the synonyms on the QMF command line as they do with regular QMF commands.
See communication area.
See communications data set.
- Explanatory text in a program or file that is not translated by the compiler.
- An annotation attached to an artifact, element, or a collection of elements. See also constraint.
In COBOL, an entry in the Identification Division of the source program that may be any combination of characters from the character set of the computer. The comment-entry is written in area B on one or more lines. Comment-entries serve only as documentation and are not translated by the compiler.
In COBOL, a source program line represented by an asterisk (*) in the indicator area of the line and any characters from the computer's character set in area A and area B of that line. The comment line serves only for documentation in a program.
commercial processing workload (CPW)
An application that is run on System i models and processors to determine processor performance. The CPW workload is representative of commercial applications, particularly those that do significant database processing in conjunction with journaling and commitment control.
Commission of European Post and Telegraph (CEPT)
A European standards-setting organization replaced by the European Telecommunications Standards Institute (ETSI). See also European Telecommunications Standards Institute.
- To make a document immutable.
- To apply all the changes made during the current unit of recovery (UR) or unit of work (UOW). After the operation is complete, a new UR or UOW can begin.
- To end a unit of work by releasing locks so that the database changes made by that unit of work can be perceived by other processes. This operation makes the data changes permanent. See also atomic, recoverable data set.
- To move managed assets from a task group in a workspace to the production-ready data on the authoring server. See also authoring server, production-ready data, quick publish, task group, workspace, workspace task group approver.
- To transfer to a specific version of the software product. When committing, the saved files from all previous versions are removed from the system, thereby making it impossible to return to a previous version without reinstallation. Committing does not change the currently active version of the software product. See also reject.
See sync point manager.
The information that associates the commit operation with a specific set of committable resource changes. The commit ID is placed in the notify object if a system or routing step failure occurs, or if uncommitted changes exist when a routing step ends normally. The commit ID contains information (supplied on the commit statement) about the last successful transaction (group of changes that appear as a single change); for example, the transfer of funds from savings to a checking account.
commit in progress (CIP)
The commit in progress logical unit of work (LUW) state indicates that all the resources associated with this logical unit of work have been prepared after a unanimous vote to commit. The protected resource managers are in the process of committing.
- In a commitment controlled environment, any time there are no outstanding changes for a committable resource existing within a job.
- A point at which there are no changes to a database file pending within a job. See also roll back.
- A way of grouping file operations that allows the processing of a group of database changes as a unit or the removal of a group of database changes as a unit. See also roll back.
- A means of grouping committable resource operations to allow either the processing of a group of committable resource changes as a single unit through the Commit command, or the removing of a group of committable resource changes as a single unit through the Rollback command.
Information used by the system to maintain the commitment control environment throughout a routing step and, in the case of a system failure, throughout an IPL (initial program load). This information is obtained from the Start Commitment Control (STRCMTCTL) command, which establishes the commitment control environment, and the file open information in a routing step. The commitment definition has a scope either to the job or to a particular activation group within the job.
- A change management operation that causes all the updates prepared in the preparation phase to take effect. See also transactional mode.
- An operation that saves a file to permanent storage.
The second phase in a XA process. If all participants acknowledge that they are prepared to commit, the transaction manager issues the commit request. If any participant is not prepared to commit, the transaction manager issues a back-out request to all participants.
A point in time when data is considered to be consistent. See also synchronization point.
committed output message
A message that is transmitted as a result of an LUW completing a syncpoint (at which time changes to data resources made by the LUW are also committed). A committed output message is one that, in the event of a failure, needs to be transmitted and acknowledged to be sure that logical consistency with the changes to data resources is maintained. During recovery processing, if an LUW has committed its changes but an associated committed output message has not been transmitted or has not been acknowledged, CICS places the message in a message cache. The system can retransmit the message from the cache if desired.
In Informix, an isolation level under which a query in a transaction can read only rows that are committed at the moment when the query is requested. The user cannot view rows that were changed as a part of a currently uncommitted transaction. Committed read is available through a database server and set with the SET ISOLATION statement. It is the default level of isolation for databases that are not ANSI compliant. See also read committed, uncommitted read.
The process by which goods and services that were once unique offerings become more generic in the marketplace. Commoditization occurs when the goods or services can be produced on a larger scale by more companies.
An agent that provides shared infrastructure for management applications. The common agent is self-monitoring and self-starting, and provides remote deployment capability, shared machine resources, secure connectivity, and a single entry point. See also agent, subagent.
Common Analysis Structure (CAS)
A structure that stores the content and metadata of a document, and all analysis results that are produced by a text analysis engine. All data exchange during document analysis is handled by using the common analysis structure. See also annotation, common analysis structure consumer, common analysis structure initializer, common analysis structure processor, Java common analysis structure, text analysis engine, XML common analysis structure.
common analysis structure consumer
A consumer that does the final processing on the analysis results that are stored in the common analysis structure. For example, a consumer indexes the contents of the common analysis structure in a search engine or it populates a relational database with specific analysis results. See also Common Analysis Structure.
common analysis structure initializer
A component that populates a Common Analysis Structure from a raw document. For example, if the document is HTML, a CAS Initializer might store a detagged version of the document in the CAS and also create inline annotations derived from the tags. See also Common Analysis Structure.
common analysis structure processor (CAS processor)
A component that takes a common analysis structure as input and returns a CAS as output. See also Common Analysis Structure.
common anchor area (CAA)
Dynamically acquired storage that represents a z/OS thread. This area acts as a central communications area for the program, holding control blocks and addresses of various storage and error-handling routines, and control blocks.
- In a web page that is based on a page template, the fixed region of the page.
- A control section used to reserve a virtual storage area to which other modules can refer.
Common Base Event
A specification based on XML that defines a mechanism for managing events, such as logging, tracing, management, and business events, in business enterprise applications. See also situation.
common channel signaling (CCS)
A method of communicating telephony information and line signaling events (for example, call setup and call clearing) on a dedicated signaling channel. See also channel associated signaling.
common client interface (CCI)
A standard interface that allows developers to communicate with enterprise information systems (EISs) through specific resource adapters, using a generic programming style. The generic CCI classes define the environment in which a J2EE component can send and receive data from an EIS.
common communication layer (CCL)
The communication infrastructure that unites the various components, such as controller, parser, crawler, and index server, of WebSphere Information Integrator OmniFind Edition.
Common Communications Support (CCS)
The Systems Application Architecture (SAA) component that defines architectures and protocols that interconnect systems and devices in an SAA environment and allow data to be interchanged among them.
Common Connector Framework (CCF)
A product offering interface and class definitions that provide a consistent means of interacting with enterprise resources (for example, CICS and Encina transactions) from any Java execution environment.
Common Console Interface (CCI)
The interface definition that enables console components to run either in a previously installed console or in a web console, such as the Integrated Solutions Console (ISC).
Common Cryptographic Architecture (CCA)
IBM software that enables a consistent approach to cryptography on major IBM computing platforms. It supports application software that is written in a variety of programming languages. Application software can call on CCA services to perform a broad range of cryptographic functions, including DES and RSA encryption.
Common Data Model
A logical data model that defines the standard representation of resources and how those resources are associated to each other. The Common Data Model uses influences from various standards bodies in the industry and serves as a best practice conglomeration of all standards.
common error bucket
An additional error status element (ESE) generated for each terminal error block (TEB), if fewer ESEs than the maximum number of error types recognized by the CICS terminal abnormal condition program are specified when the terminal error program (TEP) tables are generated.
Common Event Infrastructure (CEI)
The implementation of a set of APIs and infrastructure for the creation, transmission, persistence, and distribution of business, system, and network Common Base Events. See also event emitter, event server.
Common Information Model (CIM)
An implementation-neutral, object-oriented schema for describing network management information. The Distributed Management Task Force (DMTF) develops and maintains CIM specifications. See also common management model.
common interchange unit (CIU)
The independent unit of transfer for a common interchange file (CIF). It is the part of the CIF that identifies the relationship to the receiving database. A CIF can contain multiple CIUs.
Common Internet File System (CIFS)
A protocol that enables collaboration on the Internet by defining a remote file-access protocol that is compatible with the way applications already share data on local disks and network file servers.
In COBOL, the key fields that are common to all record formats in the file starting with the first key field (the most significant) and ending with the last key field (the least significant).
common language runtime (CLR)
The runtime interpreter for all .NET Framework applications. See also .NET Framework.
- The architecture that defines the channel commands used between the host and the channel attachment adapter.
- A continuously executing program designed to minimize host interrupts while maximizing channel utilization.
common management information service (CMIS)
In OSI, the set of services defined by ISO 9595. The common management information service is used by agent processes and managing processes to communicate.
common management model (CMM)
A model that describes how to represent IT entities as managed resources and services. See also Common Information Model.
common message log
A log that contains messages from several Infoprint Server components, including Print Interface, NetSpool, and IP PrintWay extended mode. Infoprint Central and the aoplogu command can display messages in the common message log.
common MPTN manager (CMM)
The component of the MPTN architecture that provides services independent of any transport protocol. Examples include registering transport users with the MPTN address-mapper component, selecting a transport provider, and establishing MPTN connections.
Common Object Request Broker Architecture (CORBA)
An architecture and a specification for distributed object-oriented computing that separates client and server programs with a formal interface definition. See also Bonobo, Internet Inter-ORB Protocol.
Common Programming Interface (CPI)
In Systems Application Architecture (SAA), a set of software interfaces, conventions, languages, and protocols that provide a framework for writing applications with cross-system consistency.
Common Programming Interface for Communications (CPI-C)
A call-level interface that provides a consistent application programming interface (API) for applications that use program-to-program communications. CPI-C uses LU 6.2 architecture to create a set of interprogram services that can establish and end a conversation, send and receive data, exchange control information, and notify a partner program of errors.
See common area.
A function available to applications on a variety of operating system platforms, accessible through any supported programming language. A common service can include support for character classification, collation, case conversion, data formatting, and so on.
common service area (CSA)
In a z/OS operating system, a part of the common area that contains data areas that can be addressed by all address spaces but is protected during its use by the key of the requester.
Common Service Layer (CSL)
A collection of IMS manager address spaces that provide the infrastructure that is needed for systems management tasks. The CSL address spaces include Open Database Manager (ODBM), Operations Manager (OM), Resource Manager (RM), and Structured Call Interface (SCI). The CSL is built on the Base Primitive Environment (BPE) layer.
- In MVS, an area that contains system control programs and control blocks. The storage areas within the common area are the system queue area (SQA), the pageable link pack area (PLPA), the (optional) modified link pack area (MLPA), a pageable BLDL table, a copy of the prefixed storage area (PSA) (for multiprocessor systems only), and a common system area (CSA).
- A major CICS storage control block that contains areas and data required for the operation of CICS.
common table expression
An expression that defines a result table with a name (a qualified SQL identifier). The expression can be specified as a table name in any FROM clause in the fullselect that follows the WITH clause.
common user ID
See common user identification.
common user identification (common user ID)
In System i Access, the user identification of a System i Access user that is used by the router when establishing a communications connection with a host system if a user ID is not specified in either the CONFIG.PCS file or in an alternative configuration file. The router uses this common user ID when connecting the personal computer to each additional host system. See also user identification.
- An area within the CSA that can be used by application programs for user data that needs to be accessed by any task in the system. See also transaction work area.
- A work area that can be accessed by any transaction in the CICS system.
An association between an actor class and a use case class, indicating that their instances interact. The direction of the association indicates the initiator of the communication (Unified Process convention).
- A device that allows network communication.
- An optional hardware feature, available on certain processors, that permits communications facilities to be attached to the processors.
communication buffer exit library
A dynamically loaded, shared library that interacts with the DB2 communication layer and has access to the contents of the unencrypted communication buffers that are received at the server from clients and sent from the server to clients.
A conversation statement that transaction programs can issue to communicate through the LU 6.2 protocol boundary. The specific calls that a transaction program can issue are determined by the program's current conversation state.
communication control character
See transmission control character.
- A device that directs the transmission of data over the data links of a network; its operation may be controlled by a program executed in a processor to which the controller is connected or it may be controlled by a program executed within the device. (T)
- A type of communication control unit whose operations are controlled by one or more programs stored and executed in the unit. It manages the details of line control and the routing of data through a network. See also transmission control unit.
Communication Control Program (CCP)
A portion of the network control program communication interrupt control program (CICP) that initiates and ends I/O line operations, handles first-level line error recovery and recording, and administers commands issued by background programs.
In UML, an interaction diagram that shows the structure of interactions and messages that pass between lifelines, which can be used to explore the dynamic behavior of a system. See also object diagram, sequence diagram.
The relationship between a network interface and the associated IP label or address, function, and other parameters necessary for the application. See also network interface.
communication management configuration (CMC)
In VTAM, a technique for configuring a network that allows for the consolidation of many network management functions for the entire network in a single host processor.
communication management configuration host node
The type 5 host processor in a communication management configuration that does all network-control functions in the network except for controlling devices that are channel-attached to data hosts. See also data host node.
communication management host
See communication management configuration host node.
The method by which a client and server exchange information. See also Transmission Control Protocol/Internet Protocol.
communication network management application program
A VTAM application program that issues and receives formatted management service request units for physical units. The NetView program is an example of a CNM application program.
communication network management interface (CNMI)
An interface that the access method provides to an application program for handling data and commands that are associated with communication systems management. CNM data and commands are handled across this interface.
- The IP label or address or a fully qualified domain name that can be used to communicate with the remote node. The communication path allows the cluster configuration to be discovered from a single node.
- In UML modeling, a type of association that occurs between nodes in deployment diagrams to show how the nodes communicate.
- On a personal computer, a serial port to which a stand-alone modem can be attached.
- An access point for data entry or exit to or from a communication device such as a workstation.
communication scanner processor (CSP)
A processor in the 3725 Communication Controller that contains a microprocessor with a control code. The code controls transmission of data over links attached to the CSP.
The physical placement of communications controllers, the attachment of communications lines, and so forth; and the configuration descriptions that describe the physical configuration to the system and describe how the configuration will be used by the system.
communications data set (COMMDS)
The primary means of communication among systems governed by a single storage management subsystem (SMS) configuration. The COMMDS is a linear data set (LDS) that contains the name of the active control data set (ACDS) and current usage statistics for each system-managed volume, which helps balance space among systems running SMS. See also active control data set, control data set, source control data set.
Part of the task control area (TCA) that is used by CICS and by user-written application programs for communication between the application program and CICS management and service programs.
communications enabled application
A software application that uses an IP network and communications technology to accomplish business objectives. Enterprise applications can be communications enabled with web telephony components and collaborative web services that allow users to dynamically interact through shared browser sessions over a secure network.
In the AIX operating system, a framework of communication that consists of a postmaster, an object registration service, a startup file, communication protocols, and application programming interfaces.
- The physical link (such as a wire or a telephone circuit) that connects one or more work stations to a communications controller, or connects one controller to another. See also data link protocol.
- The line over which data communications take place; for example, a telephone line.
See data link.
IBM SecureWay Software that supports (a) the development and use of application programs across two or more connected systems or workstations, (b) multiple concurrent connections that use a wide range of protocols, and (c) several application programming interfaces (APIs) that may be called concurrently and that are designed for client/server and distributed application programs.
communications side information
In CPI Communications, an object that contains initialization parameters, such as the name of the partner program with which a program can establish a conversation and the name of the logical unit (LU) at the partner program's node, which CPI Communications requires to establish a conversation. The system-recognized identifier for the object type is *CSI.
communications storage manager (CSM)
In VTAM, a buffer management technology that reduces performance overhead resulting from the movement of large amounts of data. CSM enables authorized host application programs to put data in buffers that can be addressed and accessed by other authorized host application programs without any need to copy the data.
A method for application programs to communicate on a local system, or between a local system and a remote system using the intersystem communications function (ICF). Examples of these communications methods include (a) asynchronous communications, (b) binary synchronous communications (BSC), (c) intrasystem communications, or (d) Systems Network Architecture (SNA), such as advanced program-to-program communications (APPC) and SNA upline facility (SNUF).
The IBM licensed program that contains the VM/MVS bridge and the remote job entry function. Communications Utilities provides a method of exchanging mail or files and submitting or receiving jobs between connected systems.
- A repository area where an assigned group of users can work together.
- In the Simple Network Management Protocol (SNMP), an administrative relationship between entities.
- The relationship between a Simple Network Management Protocol (SNMP) agent and one or more SNMP managers. The community describes which SNMP manager requests the SNMP agent should honor.
See internal partner.
Combining mathematical elements or having elements that combine in a way that the result is independent of the order in which they are processed. For example, such that a + b = b + a and a x b = b x a.
A Boolean function whose arguments are the reverse of, and evaluates to the same result as another Boolean function. Commutator functions might execute quicker depending on the nature of the query.
The data model and content for a particular business unit or enterprise that can be used to manage, link, and synchronize product information both internally and externally. See also data model.
- In SQL, a symbol used in comparison expressions to specify a relationship between two values. Comparison operators are = (equal to), <> (not equal to), < (less than), > (greater than), <= (less than or equal to), and >= (greater than or equal to).
- A built-in function that is used to compare two values. The comparison operators are ==, !=, <, >, <= and >=. See also operator.
- In REXX, an operator that compares two terms and returns the value 1 if the result of the comparison is true, or 0 if it is not true.
A parameter that defines how name tokens are compared and scored by NameHunter. Three categories of comparison parameters exist: general, given name, and family name parameters. See also search strategy.
comparison predicate subquery
See subquery in a basic predicate.
- See conversion mode.
- A mode of processing in which the IEAIPSxx and IEAICSxx parmlib members determine system resource management.
- A mode of operation in which a device can simulate the function of another device or model. The device will function like a different device of the same type, ignoring some or all of the additional features that the device might possess. Compatibility mode permits a migration between devices with minimal impact on programs that have device dependencies. See also 32-name mode, page mode.
See conversion mode*.
compatible data types
Two different data types that can be cast to one another in the database. See also implicit cast.
Offerings that have identical sets of base offering components such as resource type and measurement source. The corresponding offering components in each compatible offering can have different sets of metrics.
In the Distributed Computing Environment (DCE), a server that offers the requested Remote Procedure Call (RPC) interface and RPC object and that is accessible over a valid combination of network and transport protocols.
compatible unit (CU)
A construction template that defines labor, materials, services, and tools resources that are required to perform construction work, such as installing a utility pole. Compatible units are used as the basis for estimating the costs and resource requirements that are associated with construction work orders.
- The means by which operations in a process that have successfully completed can be undone if an error occurs, to return the system to a consistent state.
- On a federated system, the ability to process a portion of an SQL statement that is not supported by a data source. See also pushdown, query optimizer.
- The action that a collaboration takes during rollback of a transaction to undo a previously executed service call. Such an action semantically negates the action taken by a corresponding step in the service call, which has already been executed. For example, the compensation step for a Create action might involve deleting the object just created. See also isolation checking, minimum transaction level, transactional collaboration.
- In MPTN architecture, the action of making up for differences in functions that are requested by the transport user and those provided by the transport provider.
Flow that defines the set of activities that are performed while the transaction is being rolled back to compensate for activities that were performed during the normal flow of the process. A compensation flow can also be called from a compensate end or intermediate event.
The distinct way in which a business entity is positioned in the market to obtain leadership over competitors, providing the ability to maintain sustained levels of profitability above the industry average.
A license for a program that replaces a qualifying non-IBM program that is obtained for a reduced charge. See also IBM trade-up.
- Translation of a source program (such as RPG or COBOL specifications) into a program in machine language. In Integrated Language Environment (ILE) languages, compilation translates source statements into modules, which then can be bound into programs or service programs.
- In Ada language, the translation of an Ada source program into an executable object module.
In a cross-compilation environment, the machine on which compilation takes place. See also execution host.
See compile time.
- To translate all or part of a program expressed in a high-level language into a computer program expressed in an intermediate language, an assembly language, or a machine language.
- In Integrated Language Environment (ILE) languages, to translate source statements into modules that then can be bound into programs or service programs.
In the original program model (OPM), the set of machine-language instructions that is the output from the compilation of a source program. The actual processing of data is done by the machine-language program. The system-recognized identifier for the object type is *PGM.
compiled SQL PL
SQL procedure language statements that are compiled into sections within a package. See also inline SQL PL.
- A statement that controls what the compiler does rather than what the compiled program does.
- In COBOL, a statement, beginning with a compiler-directing verb, that causes the compiler to take a specific action during compilation. The compiler-directing statements are the COPY, ENTER, REPLACE, and USE statements.
- In RPG, an instruction that controls a compilation listing or causes records to be inserted. The four compiler directives are /TITLE, /EJECT, /SPACE, and /COPY.
A printout that is produced by compiling a program or creating a file and that optionally includes, for example, a line-by-line list of the high-level language source, a cross-reference list, diagnostic information; and for programs, the description of the externally described files.
A keyword that can be specified to control certain aspects of compilation. Compiler options can control the nature of the load module generated by the compiler, the types of printed output to be produced, the efficient use of the compiler, and the destination of error messages.
A keyword that can be specified to control certain aspects of compilation. Compiler options can control the nature of the load module generated by the compiler, the types of printed output to be produced, the efficient use of the compiler, the destination of error messages, and other things.
In RPG, a table that is built into the source program and that becomes a permanent part of the compiled program. See also runtime table.
- The value that can be added to the number to equal a given value.
- In Cryptographic Support, a binary value that, in an exclusive-OR operation with a given binary value of the same length, produces a binary value of all ones.
A table attribute that indicates that the table contains a row for every primary key value of interest. As a result, a complete source table can be used to perform a refresh of a target table.
complete CCD table
In data replication, a CCD table that initially contains all of the rows from the replication source table or view and any predicates from the source table or view. See also noncomplete CCD table.
During emergency restart, a task for which recovery control encountered user-journaled records that were written with the high-order bit set on in the JTYPEID operand of the EXEC CICS WRITE JOURNALNUM command. (In CICS Transaction Server only, backout processing ignores these records, but presents them to the user at the XRCINPT exit.)
complete packet sequence
Either an individual X.25 data packet or a sequence of packets with the more-data bit (M-bit) set to 1 and the delivery-confirmation bit (D-bit) set to 0, followed by a further data packet with the M-bit set to 0 and the D-bit set as required.
- In Tivoli Workload Scheduler for z/OS, a system code that indicates how the processing of an operation ended at a workstation. See also error code.
- An indicator that reflects the status of a task set at the time of its completion.
- A return code indicating how a message queue interface (MQI) call has ended.
- A message the storage system sends as a result of running a command-line interface (CLI) command.
A single operation that impacts one or more ontologies and spans multiple repository versions. Examples of a complex change are ontology content pack (OCP) imports and ontology deletions.
In COBOL, a condition in which one or more logical operators (AND, OR or NOT) act on one or more conditions. Complex conditions include negated simple conditions, combined conditions, and negated combined conditions. See also simple condition.
In FORTRAN, an ordered pair of real or integer constants separated by a comma and enclosed in parentheses. The first constant of the ordered pair represents the real part of a complex number; the second represents the imaginary part.
complex data type
A data type that is built from a combination of other data types by using an SQL type constructor and whose components can be accessed through SQL statements. See also collection data type, data type, row data type.
A named structure that contains simple elements within the message. Complex elements can contain other complex elements, and can also contain groups. The content of a complex element is defined by a complex type. See also element, simple element.
complex instruction set computer (CISC)
A computer that uses the traditional processor architecture to process instructions. See also reduced instruction set computer.
A collection of multiple scorecards within one rule flow. The rule flow is used to identify the dependency, the flow and the order in which the score from each of the scorecards will be included in the overall score.
complex text language (CTL)
A language that has the properties of a simple text language but also additional characteristics of bidirectionality, automatic character shaping, or combining sequences. They use typically small character sets. Combining sequences include characters combined to form new characters, and characters combined with tone marks. In languages that are written in a bidirectional manner, the native words are written from right to left (as in Hebrew and Arabic), while numbers and borrowed words are written from left to right. Arabic and similar scripts use cursive writing and require automatic shaping of characters for rendering. See also ideographic language, simple text language.
- A type that contains elements and can include attributes. See also simple type.
- In Fortran, a data type that represents values of complex numbers. A value is expressed as an ordered pair of real data items separated by a comma and enclosed in parentheses. The first item represents the real part of the complex number, and the second item represents the imaginary part.
complex word processing
In lexical analysis, the process in which algorithmic processing is used to determine the boundaries of words. In the case of Indo-European languages, the LanguageWare algorithm uses constraints in order to determine optimal boundaries. For Chinese, LanguageWare uses statistical processing - word frequencies and collocation frequencies. For Japanese LanguageWare uses a combination of statistical and grammatical processing.
In i5/OS licensed management, the value that determines the action the product must take when the authorized usage limit is reached or exceeded. The warning compliance type indicates users are never denied access to a product. The operation action compliance type means that new users are denied access to the product once the usage limit is reached, but users that are currently using the product still have access.
- A named, cataloged collection of stored records, such as the data component or index component of a key-sequenced file or alternate index. A component contains no named subsets.
- A set of modules that performs a major function within a system.
- A visual element of a host screen, such as a command line, function key, or selection list. HATS applications transform host components into widgets.
- An entity about which measurements are collected for reporting purposes. Sample components include a specific network storage device; the web address http://www.ibm.com; and a person with whom one has a customer relationship. Each component type in the data model has a set of metrics and attributes that apply to all components of that type.
- A reusable object or program that performs a specific function and works with other components and applications.
- A part of a structured type or value, such as an array element or a record field.
- In UML modeling, a model element that represents an autonomous, replaceable part of a system.
- A connection, build, reference dimension, reference structure, template, JobStream, user-defined function, metadata dimension, or metadata collection in a catalog.
- In VisualAge RPG, a functional grouping of classes and related files within a product.
- A grouping of related artifacts in a stream or repository workspace. A component can contain any number of folders and files.
- A ClearCase object that is used to group a set of related directory and file elements within a Unified Change Management (UCM) project. Typically, the elements that make up a component are developed, integrated, and released together. A project must contain at least one component, and it can contain multiple components. Projects can share components.
- A software item that is part of a software product, and might be separately identified, but is not individually licensed.
- A common component or an assembly. See also assembly, common component.
- In Eclipse, one or more plug-ins that work together to deliver a discrete set of functions.
In the IBM Director Rack Manager task, a function that can make a managed system or device rack-mountable when the inventory collection feature of IBM Director does not recognize the managed system or device. The function associates the system or device with a predefined component.
component business model (CBM)
See also component business modeling.
component business modeling (CBM)
A method whereby organizations can identify opportunities for improvement and innovation by regrouping their activities into a manageable number of discreet modular and re-usable components. See also component business model.
In the Reusable Asset Specification (RAS), a collaboration in which all the components are specified with type models; some of them may come with their own implementations. To use the framework, plug in components that fulfill the specifications.
- A running component that can be running in parallel with other instances of the same component.
- A UML model element that represents an actual entity in a system.
A re-engineering and transformation of the SWG development model. This transformation is a key part of the IBM On Demand strategy. Its fundamental goals are to make our software business more responsive to customer demands, and to improve development efficiency and effectiveness. Specifically, software componentization is the movement of IBM software development from a monolithic, product-oriented development model to one based on the concept of software offerings composed from the sharing of reusable software components. See also consumability.
A characteristic of software componentization that impacts the various aspects of IBM!/s software business. The SPX reference architecture takes an inherently evolutionary, iterative, and incremental approach to defining software component characteristics, with each reference architecture release focusing on one or more componentization facets.
- A software development model that provides for consistent packaging of software components; the ability to upgrade part of a system as it is executing; the ability to control, monitor, and deploy software across global networks; and the ability to locate and implement services on a global scale. When developed according to the component model, components have interfaces that are rigorously implemented, are packaged into JAR files, and have dynamic execution environments.
- An architecture and an API that allows developers to define reusable segments of code that can be combined to create a program.
Component Object Model (COM)
A software architecture from DEC and Microsoft, allowing interoperation between ObjectBroker and OLE (Object Linking and Embedding). Microsoft later evolved COM into DCOM.
A utility that allows the import and export of components between catalogs. See also multi-developer support.
In a z/OS environment, a PDSE that contains jobs to define resources to DB2, WebSphere MQ, and the WebSphere Message Broker started task. See also partitioned data set.
A queue holding work items that can be completed by an external entity that interacts with the workflow. See also queue.
An expression about one or more components, which is defined in the Type Designer. A component rule is used for validating data and specifies what must be true for the data that is defined by that component to be valid.
component store archive
A starter store archive for a component of a composite store archive. Component store archives are available for each business model. See also composite store archive.
See composed-text page.
- A class that is related to one or more classes by a composition relationship.
- A Service Component Architecture (SCA) element that contains components, services, references, and wires that connect them.
- A group of related data elements used in EDI transactions.
composite bar chart
In the GDDM function, a bar chart in which multiple vertical axis values for the same horizontal axis value are stacked one on top of another. See also floating bar chart, multiple bar chart.
composite bar graph
In Performance Tools, a bar graph in which multiple vertical axis values for the same horizontal axis value are stacked one on top of another. See also floating bar graph.
composite block index
An index that contains only dimension key columns and is used to maintain the clustering of data during insert and update activity in a multidimensional clustering (MDC) or insert time clustering (ITC) table. See also dimension block index.
composite catalog entry
A collection of catalog entries that breaks down to its separate components when ordered. See also dynamic kit.
composite data type
See row data type.
A "high-level" event, typically formed from the combination of two or more atomic events. However, composite events can be "empty" - that is, they may contain no sub-events. See also atomic event, user-defined event.
In Q Language, a large expression that has been created from a series of smaller expressions. See also arithmetic operator.
composite identity relationship
An identity relationship that relates two business objects through a composite key. The composite key consists of a unique key from a parent business object and a key, which is not unique, from a child business object.
An index constructed on two or more columns of a table. The order imposed by the composite index varies least frequently on the first-named column and most frequently on the last-named column.
- A key for a file or record format that is composed of more than one key field.
- An ordered set of key columns of the same table.
The host's virtual view of the Peer-to-Peer Virtual Tape Server (PtP VTS) subsystem. In general, host communication with a library will occur at the composite level with the virtual volumes and drives being defined to the composite library.
An object that contains other objects. For example a document object that contains not only text, but also graphics, audio, image, and video objects, each of which can be manipulated separately as an individual object.
- A state that consists of either concurrent substates or sequential substates. See also disjoint substate.
- In a business state machine, an aggregate of one or more states that is used to decompose a complex state machine diagram into a simple hierarchy of state machines.
composite store archive
A compressed file that contains the organization structure, predefined user roles, and necessary access control policies to create the appropriate store environment, plus a working starter store or site. Each of the parts that make up the composite store archive are also available as separate store archives. See also component store archive, store archive.
A hierarchy in which the composition of the data is reflected in the structure of the group type in the group window. See also classification hierarchy.
In UML modeling, an aggregation relationship that specifies that the lifetime of the part classifier depends on the lifetime of the whole classifier. See also aggregation relationship.
An activity that has detail that is defined as a flow of other activities. A compound activity is a branch (or trunk) in the tree-structure hierarchy of process activities. Graphically, a compound activity is a process or subprocess.
An item in the source or target document that contains child items, such as EDI Segments and EDI composite data elements, ROD records and ROD structures in record oriented data, and XML elements.
In License Use Management, a type of license that allows a system administrator to generate license passwords for a given number of licenses. Such a license is valuable when an administrator needs a certain number of licenses, but does not yet know what machines or who will use them.
A type of string designed to simplify foreign language support by allowing text to be displayed without hard-coding the language-dependent attributes (character set, text, and direction).
In REXX, a symbol that permits the substitution of variables within its name, when referred to. A compound symbol contains at least one period and at least two other characters. It cannot start with a digit or a period, and if there is only one period in the compound symbol, it cannot be the last character. The compound symbol begins with a stem (that part of the symbol up to and including the first period). The stem is followed by the tail (the parts of the name, delimited by periods, that are constant symbols, simple symbols, or null). Compound symbols allow the construction of arrays, associative tables, lists, and so on.
- To hide objects within a data hierarchy. A plus sign is used in a compressed section to indicate that objects are hidden.
- To reduce the size of a set of data, such as a file, to save space or transmission time. See also compressed format.
A method of digitally encoding and decoding several seconds of voice quality audio per single videodisc frame. This increases the storage capability to several hours of audio per videodisc. Sometimes referred to as still frame audio or sound over still.
A type of extended-format data set. In the Virtual Storage Access Method (VSAM), individual records are put in a compressed-format data set; in the sequential access method (SAM), individual records or blocks are put in a compressed-format data set. See also compress, extended format.
In CoOperative Development Environment/400, a graphical representation of the listing of the program currently being debugged. See also compressed source.
In CoOperative Development Environment/400, a graphical representation of the source of the program currently being debugged. See also compressed listing.
Video resulting from the process of digitally encoding and decoding a video image or segment using a variety of computer techniques to reduce the amount of data required to represent the content accurately.
- In SNA, the replacement of a string of up to 64 characters by an encoded control byte to reduce the length of the data stream sent to the LU-LU session partner. See also string control byte.
- A function that removes repetitive characters, spaces, or strings of characters from the data being processed and replaces the repetitive characters with control characters. Compression reduces the amount of storage space that is required for the data. See also data deduplication.
- The act of hiding child items of a selected object when the outline view is selected.
The dictionary that is referred to during the process of compression and decompression. In DB2 for z/OS, this dictionary is created from the data in a table space or table space partition. In DB2 for Linux, UNIX, and Windows, this dictionary is created from data in each table partition, data in each table in a database partition, or XML data stored in the XML storage object of a table. A compression dictionary is specific to the table space, table space partition, table, or XML storage object from which it was created. See also automatic dictionary creation.
A constructor that creates element, attribute, document, text, processing-instruction, or comment nodes in which the content of the node is based on enclosed expressions. See also constructor, direct constructor.
In the Distributed Computing Environment (DCE), the resulting time after a Distributed Time Service (DTS) clock synchronization. Computed time is the value that the clerk or server process computes according to the values it receives from several servers.
- A Blue Gene core node on which user applications run.
- A processing node in a parallel processing environment that handles additional computations. Any processing node that is not a conductor node is a compute node. Each engine tier can have one or more compute nodes. See also processing node.
An instruction that can be recognized by the processing unit of the computer for which it is designed. See also computer language.
- A computer-driven, digital communications controller providing telephone communication between internal stations and external networks.
- An exchange in which a central node acts as a high-speed switch to establish direct connections between pairs of attached nodes.
A language that can be used directly by a computer without intermediate processing. See also computer instruction.
Computer Science Network (CSNET)
A large computer network, mostly in the United States but with international connections. CSNET sites include universities, research labs, and some commercial companies. CSNET has merged with the Because It's Time Network (BITNET) to form the Consortium for Research and Education Network (CREN).
computer-telephony integration (CTI)
The use of a general-purpose computer to issue commands to a telephone switch to transfer calls and provide other services. Typically, CTI is used in call centers.
computing system RPQ
A customer request for a price quotation on alterations or additions to the functional capabilities of a computing system, hardware product, or device. The RPQ can be used in conjunction with programming RPQs to solve unique data processing problems. See also programming request for price quotation.
COM setup data
Data that enables the PSF user to designate unique microfilm printing functions for AFP print jobs. The parameter values, structure, syntax, and semantics are defined by the COM manufacturer, not by IBM-controlled architectures.
- To link together.
- To join two character strings.
The key that is constructed to access a particular segment. A concatenated key consists of the key fields, including that of the root segment and successive children, down to the accessed segment.
- In REXX, an operator used to combine two strings into one by adding the second string to the right end of the first string. The concatenation operators for REXX are a double vertical bar (which concatenates without a blank) and the blank (which concatenates with a blank).
- The symbol used to join two character data items. The concatenation operator is often represented as two vertical bars (||).
- Any device that combines incoming messages into a single message (concentration) or extracts individual messages from the data sent in a single transmission sequence (deconcentration).
- In data transmission, a functional unit that permits a common transmission medium to serve more data sources than there are channels currently available within the transmission medium.
- An FDDI node that has additional parts beyond those required for its own attachment to a FDDI network. These additional parts (type M) are for attaching other FDDI nodes (type S) in a tree topology. Primarily, a concentrator is used to allow more than two single attachment stations (SAS) to communicate. It can also connect multiple SAS to a dual attachment station (DAS) ring.
A text analysis function that identifies significant vocabulary items, such as people, places, or products, in text documents and produces a list of those items. See also theme extraction.
The most abstract form of specialization of an architecture, favoring coverage over precision, and specifying a finite set of types for components and for relationships in the system.
- A class that can be directly instantiated. See also abstract class.
- A class defining objects that can be created.
- A class that is not abstract.
- In DCE X/Open Object Management, an OM class that permits instances.
In object-oriented programming, a class that is used to create instances of another class. A concrete factory isolates the creation of objects of a particular class into one place so that new functions can be provided without widespread code changes.
The shared use of resources by multiple interactive users or application processes at the same time. See also lost update.
- Pertaining to the shared use of resources by multiple interactive users or application programs at the same time.
- Pertaining to the occurrence of two or more activities within a given interval of time. Concurrent processes can alternately use shared common resources.
Simultaneous access to a shared volume group or a raw disk by two or more nodes. In this configuration, all the nodes defined for concurrent access to a shared volume group are owners of the shared resources associated with the volume group or raw disk.
concurrent cold repair
Repair to hardware that is electrically isolated from the running system. The hardware that is isolated has no resources that are being used by the system when the repair is started.
concurrent copy-compatible snapshot (CC-compatible SnapShot)
See virtual concurrent copy.
concurrent image copy (CIC)
A batch utility program that is used to make a copy of OSAM data sets and VSAM entry-sequenced database data sets (DBDSs), whether or not IMS is running and the database is online.
A type of license, administered by the network license server, that can be used by different users from any node that is connected to a network license server. Concurrent licenses enable as many users to use a particular software product concurrently as there are licenses. See also concurrent offline license.
A login that occurs simultaneously with other logins. See also login.
concurrent offline license
A type of license that allows authorized users to reserve a concurrent license for a certain number of days and to use it on a portable computer that is disconnected from the network. See also concurrent license.
concurrent resource group
A resource group that attempts to become activated on all the nodes in the node list with no priority among the owner nodes. If one node fails, the other nodes continue to offer the service. See also nonconcurrent resource group, resource group, resource group policies.
A server that can handle many connections at the same time. It can accept new connection requests while still processing the transactions started by previous requests. See also iterative server.
In SQL replication, a table attribute that indicates that the table contains current data rather than a history of changes to the data. A condensed table includes no more than one row for each primary key value in the table. As a result, a condensed table can be used to supply current information for a refresh.
condensed CCD table
In data replication, a CCD table that contains only the most current value for a row and has only one row for each key value. See also consistent-change-data table, noncondensed CCD table.
- In a business state machine, an expression that guards the transition and allows transition to the next state only when and if the incoming operation evaluates to 'True'. Otherwise, the current state is maintained.
- An expression that can be evaluated as true, false, or unknown. It can be expressed in natural language text, in mathematically formal notation, or in a machine-readable language.
- An exception that has been enabled, or recognized, by the Language Environment and thus is eligible to activate user and language condition handlers. Conditions can be detected by the hardware/operating system and result in an interrupt. They can also be detected by language-specific generated code or language library code.
- An expression that consists of an agent attribute, an operator such as great than or equal to, and a value. It can be read as, "If - system condition - compared to - value - is true. See also situation.
- A database object that names an SQL exception or warning, optionally with an associated SQLSTATE, that can be signaled or referenced by a handler in SQL PL. See also module object.
- In the Integrated Language Environment (ILE) model, a system-independent representation of an error condition within a high-level language (HLL). For an i5/OS program, each ILE condition has a corresponding exception message.
- A test of a situation or state that must be in place for a specific action to occur.
- The component of a policy expression that specifies the states for which a policy is relevant.
- In REXX, a specific event, or state, that can be trapped by the REXX CALL ON or SIGNAL ON instruction.
- The circumstances or state information of a managed resource that are examined during policy evaluation.
conditional access list
In RACF, an access list within a resource profile that associates a condition with a user ID or group ID and the corresponding access authority, allowing otherwise unauthorized access if the specified condition is true. See also access list.
A breakpoint where processing is suspended when a specified condition evaluates to TRUE. See also unconditional breakpoint.
- An SNA indicator in the request header, FMH5, denoting the end of a conversation between two transactions. See also begin bracket.
- In SNA, the value (binary 1) of the conditional end bracket indicator in the request header (RH) of the last request of the last chain of a bracket; the value denotes the end of the bracket. See also end bracket.
- In COBOL, a simple condition or a complex condition specified in an IF, a PERFORM, or a SEARCH statement.
- A statement that compares the relationship (such as greater than or equal) of two items.
- A compound expression that contains a condition (the first expression), an expression to be evaluated if the condition has a nonzero value (the second expression), and an expression to be evaluated if the condition has the value zero (the third expression).
See dynamic hold.
An alternative method for choosing a reason code assignment. It is a reasoning strategy that the user specifies in the scorecard requirements, which evaluates every attribute!/s possible value ranges. The reason codes are determined based on the expected value of the attributes and rank order. Typically, the four lowest expected and their corresponding reason codes are chosen. A conditional mean can be used in neural nets and fused scorecards.
- In COBOL, a phrase that specifies the action to be taken on the determination of the truth value of a condition resulting from the running of a conditional statement.
- In REXX, a phrase in a DO instruction, introduced by the subkeyword WHILE or UNTIL, that is used to change the iteration of a repetitive DO loop.
A type of prompting that is provided by the system depending on the values selected by the user for other parameters. See also selective prompting.
conditional restart control record (CRCR)
A queue of records in the bootstrap data set (BSDS) that is associated with a conditional restart of DB2 for z/OS. Each element in the queue indicates the choices that were made when the record was created and the progress of the restart operation it controls.
- A statement that permits execution of one of a number of possible operations, with or without a transfer of control.
- A statement that runs if a specified expression evaluates to a nonzero value.
- In COBOL, a statement that controls program flow based on the result of the evaluation of a condition.
- A statement used to express an assignment or branch based on specified criteria.
See conditioned installable unit.
A user-written routine or language-specific routine (such as a PL/ION-unit or C signal() function call) invoked by the Language Environment condition manager to respond to conditions.
condition information block (CIB)
The platform-specific data block used by the Language Environment condition manager as a repository for data about conditions raised in the Language Environment run-time environment.
- The use of indicators in a program to control when calculations or output operations are done, or in a file, the use of indicators or condition names to control when certain functions or operations are done.
- In data communications, the addition of equipment to a nonswitched voice-graded channel to provide minimum values of line characteristics required for data transmission.
- The use of indicators to control when calculations or output operations are to be performed.
- For display files, a name used to control the selection of DDS keywords and display locations based on the model of the display station.
- In COBOL, a name assigned to a specific value, set of values, or range of values within the complete set of values that a conditional variable can have.
- The name assigned to a status of a user-defined switch.
Conditions of Satisfaction card (COS card)
A standard form used by opportunity owners (project managers etc.) to record and monitor the conditions that a customer feels must be met in order for them to feel satisfied with the service provided.
The step of the Language Environment condition handling model that follows the enablement step. In the condition step, user-written condition handlers, C signal handlers, and PL/I ON-units are first given a chance to handle a condition. See also enablement step, termination imminent step.
- In Language Environment, a data type consisting of 96 bits (12 bytes). The condition token contains structured fields that indicate various aspects of a condition including the severity, the associated message number, and information that is specific to a given instance of the condition.
- A 12-byte data structure, which is consistent across multiple Systems Application Architecture (SAA) participating systems, that allows the application programmer to associate the condition with the underlying exception message.
In REXX, the method by which the explicit flow of processing in a REXX program can be changed. Condition traps are enabled or disabled using the ON or OFF subkeywords of the CALL and SIGNAL instructions.
A number between 0 and 100 indicating the level of accuracy of the trended value. The number 0 indicates no confidence. The number 100 indicates a perfect correlation between trended and actual measured values.
- In computer security, assurance that sensitive information is not visible to an eavesdropper.
- The security service that protects sensitive information from unauthorized disclosure. Encryption is a common mechanism for implementing this service.
See configuration specification.
- In a broker domain, the brokers, execution groups, deployed message sets, and deployed message flows, and the defined topics and access control lists.
- A type of decision, for both solicited and unsolicited interactions, that controls the properties of a managed resource.
- The machines, devices, and programs that make up a system, subsystem, or network.
- The manner in which the hardware and software of a system, subsystem, or network are organized and interconnected.
- The process of describing to a system the devices, optional features, and program products that have been installed so that these features can be used. See also customization, system customization.
- See topology.
- The requirements, design, and implementation that define a particular version of a system or system component. See also configuration management.
- The operating system parameters of a system profile.
The administration of the configuration object types (CTs), configuration objects (COs), and configuration object sets (COSs) that comprise the configuration data of organizational units (OUs). This is carried out after the product has been installed and customized.
The graphical user interface that is used to configure the system, monitor data and route messages, and view reports. In Anonymous Resolution, you also manage alerts in this console.
The Data Interchange Services client database that stores parameters necessary for running Data Interchange Services client, including database definitions, messages, queries, and preferences.
Entities used to model an organization and to specify how messages are processed. These entities include configuration object types (CTs), organizational units (OUs), configuration object sets (COSs), configuration objects (COs).
- See parameter file.
- A Struts file that contains information about data sources, form beans, global forwards, and action mappings.
- A file that contains the values of configuration parameters. See also database configuration file, database manager configuration file.
- A file that specifies the characteristics of a program, system device, system, or network.
- A file read during database server disk or shared-memory initialization that contains the parameters that specify values for configurable behavior. A database server and its archiving tool use configuration files. See also parameter.
- In performance, a file that contains information about a collection as well as certain system attributes.
configuration item (CI)
Any component of an information technology infrastructure that is under the control of configuration management. See also asset.
A list of local or remote locations, network addresses, or pass-through device descriptions used by some types of communications descriptions. The system-recognized identifier for the object type is *CFGL.
- The control of information necessary to identify both physical and logical information systems and their relationship to one another.
- The process of planning for, identifying, controlling, and verifying the configuration items within a service, recording and reporting their status and, in support of change management, assessing the potential impact of changing those items.
- A supporting process whose purpose is to identify, define, and baseline items; control modifications and releases of these items; report and record status of the items and modification requests; ensure completeness, consistency and correctness of the items; and control storage, handling and delivery of the items. See also configuration.
Configuration Management Database (CMDB)
A database that contains details about the attributes and history of each configuration item and the details about the relationships between configuration items.
configuration management system (CMS)
A set of databases and tools that are used to manage configuration data. A CMS can include one or more CMDBs, plus data about changes, incidents, and other artifacts and processes. The CMS is maintained by the configuration management process and used by all service management processes.
The component that provides an interface between the workbench and a set of runtime brokers. It provides brokers with their initial configuration, and updates them with any subsequent changes. It maintains the broker domain configuration.
- A server that distributes configuration information, such as policies and schedules, to managed servers according to their profiles. Configuration information can include policy and schedules. See also enterprise configuration, managed server, profile.
- A program to supervise device configuration during initial program load (IPL).
configuration object (CO)
An instance of a configuration object type (CT) that represents an object in an organizational unit (OU). Which attributes can be added to a CO is determined by the definition of the CT on which the CO is based.
- A variable that controls the behavior of the system or the behavior of all applications running on the system.
- A parameter whose value limits or defines the resources that can be used by the database manager or a database. Some configuration parameters are informational and define characteristics about the environment that cannot be changed. See also database configuration parameter.
configuration report server (CRS)
A function that resides on each ring in an environment of multiple token-ring networks in which configuration is being monitored. This function receives notifications about inserting and removing stations and notifications about active monitor failures.
- A storage area of configuration data that is typically located in a subdirectory of the product installation root directory.
- A RIM repository that contains information stored by inventory scans and software distributions.
Service activating, deactivating, and maintaining the status of physical units, links, and link stations. See also session services.
configuration specification (config spec)
A set of rules that specify which versions of VOB elements a view selects. The config spec for a snapshot view also specifies which elements to load into the view.
A utility that is used after installation to modify configuration settings for database configuration and WebSphere Application Server logging. It can also be used to apply fixes to the Configuration Console and the Visualizer.
Software that provides a dynamic rules-based kit (bundling) capability to determine a group of items that may be sold together. The configurator may also supply a price for the configuration. This grouping is based on pre-defined rules in addition to user interaction with the configurator. See also dynamic kit.
- To describe the interconnected arrangement of the devices, programs, communications, and optional features installed on a system.
- In storage, to define the logical and physical configuration of the I/O subsystem through the user interface that the storage facility provides for this function.
- To describe setting up auxiliary storage pools and checksum protection.
Takes a device from the defined state to the available state. If a device has a device driver, the configure method is responsible for loading and binding the driver into the kernel. If the device supports the optional stopped state, the configure method takes the device from the defined state to the stopped state.
- In X.25 communications, to respond to the arrival of a clear-indication or reset-indication packet.
- In OSI, a service primitive issued by a service provider to complete the procedures associated with a confirmed service.
confirmation of delivery
The automatic notification to the sender of a message, note, or document as to when action is taken on the message, note, or document. Confirmation of delivery must be requested by the sender.
In DFSMSrmm, a panel that signals DFSMSrmm whether to continue or stop a delete or release action. Confirmation of delete or release requests is specified in the dialog user options.
In OSI, a service that indicates to the sender whether or not data or control information was properly received. A confirmed service involves a request, indication, response, and confirm service primitive. See also unconfirmed service.
confirm-on-delivery report (COD report)
A WebSphere MQ report message type created when an application retrieves a message from the queue in a way that causes the message to be deleted from the queue. It is created by the queue manager.
- A discrepancy among change sets in a repository workspace.
- A result that occurs when two simultaneous edit submissions are processed for the same object and where the intended outcome of the edit is unclear.
- In a compare or merge session, the result when two contributors have changes that cannot both be accepted.
The process of determining whether a replicated change (an insert, an update, or a delete) is incompatible with some characteristic of a target. An incompatibility exists, for example, if changes were made to both a source and a target before replication occurred. See also master table, replica table.
An external reference from a Fortran or assembler language routine to a Fortran library routine with a name that is the same as the name of a C/C++ library routine. The reference is considered to be a conflicting reference only when the intended resolution is to the Fortran library routine rather than to the corresponding C/C++ library routine.
See role alert rule.
- See network congestion.
- A situation that occurs when network traffic exceeds a connection's bandwidth.
A transportation fee that is charged to drivers for using roads during peak periods, encouraging drivers to use public transportation, reduce emissions, and lighten traffic congestion.
conjoined name construct
A grouping of name segments that contains two given names, two titles, pairs of titles and given names, two entire names, or any combination of these name elements. For example, "Mr. and Mrs. John Smith" contains conjoined titles and "Mr. and Mrs. John and Mary Smith" contains conjoined titles and conjoined given names in the same construction.
connect data set to line (CDSTL)
In SNA, an option that determines how the data terminal ready (DTR) signal to the modem operates. It is used if a DTR indicates an unconditional command from the data terminal equipment (DTE) to the attached data circuit-terminating equipment (DCE) to connect to or remove itself from the network.
In VTAM, pertaining to the state of a physical unit (PU) or a logical unit (LU) that has an active physical path to the host processor containing the system services control point (SSCP) that controls the respective PU or LU.
A graph where there is a path that connects each pair of nodes. See also disconnected graph.
- In data communication, an association established between entities for conveying information. See also SQL connection.
- A combination of two endpoints that the virtual private network (VPN) protects and a security policy. Such a connection can exist between any combination of a host and a gateway.
- A relationship between nodes in an Application Diagram.
- See link.
- A set of parameters used by HATS to connect to a host application, stored in an .hco file. See also background connection, default connection.
- A link between two process elements. Connections can be used to specify the chronological sequence of activities in a process.
- A set of properties, such as host name, server launcher settings, and security settings that is required to communicate with a specific remote system.
- In Open Systems Interconnection architecture, an association established by a given layer between two or more entities of the next higher layer for the purpose of data transfer.
- The information required to connect to a database. The actual information required varies according to the DBMS and connection method.
A mechanism that allows applications to stay connected without any resources being used on the DB2 host server. Thousands of connections can be active while only a few agents are active on the DB2 host server.
connection event sequence (CES)
This value is copied to full name (NCC) records and used by the path manager to determine the most current record pertinent to the tracking of full name (NKJE) connections.
A set of configuration values that produces connections that enable a Java EE component to access a resource. Connection factories provide on-demand connections from an application to an enterprise information system (EIS) and allow an application server to enroll the EIS in a distributed transaction.
- The identifier or token by which a program accesses the queue manager to which it is connected.
- The data object containing information that is associated with a connection that is managed by DB2 ODBC. This information includes general status information, transaction status information, and diagnostic information. See also statement handle.
- A representation of a connection to a server resource.
See connection identifier.
- A value used to identify a resource. The value is returned to the connecting program after connect processing has established a session and must be used on subsequent requests to the resource.
- A DB2 for z/OS identifier that is supplied by the attachment facility and that is associated with a specific address space connection.
connectionless-mode network service (CLNS)
In OSI, an unacknowledged network service that enables an entity to send a unit of data from a source service access point to one or more destination service access points without establishing a connection. The OSI protocol that provides this service in the Network Layer is defined by ISO 8473 (internet protocol, or IP).
A network in which the sending logical node must have the address of the receiving logical node before information interchange can begin. The unit is routed through nodes in the network based on the destination address in the unit. The sending node does not receive an acknowledgement that the packet was received at the destination.
Connectionless Network Protocol (CLNP)
An OSI protocol for the delivery of data. CLNP uses datagrams (packets) that include address information for routing network messages. CLNP is used in local area networks (LANs) rather than wide area networks (WANs).
In the Distributed Computing Environment (DCE), a remote procedure call (RPC) transport protocol, such as User Datagram Protocol (UDP), that does not require a connection to be established prior to data transfer. See also connection-oriented protocol.
- A network service that treats each packet or datagram as a separate entity that contains the source address and destination address and for which no acknowledgment is returned to the originating source. Connectionless services are on a best-effort basis and do not guarantee reliable or in-sequence delivery. See also connection-oriented network service, connection-oriented service.
- See unacknowledged service.
A communications object for ISDN that provides a list of information used to determine when to accept incoming calls and what information to send with outgoing calls. The system-recognized identifier for the object type is *CNNL.
connection management stream
In X.25, a special stream that receives all incoming connect indications destined for DLSAP addresses that are not bound to any other streams associated with a particular PPA.
A Content Manager component that helps maintain connections to the library server, rather than starting a new connection for each query. The connection manager has an application programming interface.
connection-mode network service
In OSI, an acknowledged network service that enables an entity to send a unit of data from a source service access point to a destination service access point by establishing, maintaining, and disconnecting a connection. The OSI protocol that provides this service in the network layer is defined by the X.25 Packet-Level Protocol defined by CCITT 1980 and 1984.
A switched network (such as a local area network, X.25, or public-switched dial network) that allows a local node to establish APPN connections to more than one undefined adjacent node.
connection-oriented network service (CONS)
A type of networked data communication in which a dedicated connection between two peer entities is established before data is transferred. A connection-oriented service consists of three phases: establishment, data transfer, and release. The two networks exchange address information only while the connection is being established. See also connectionless service.
In the Distributed Computing Environment (DCE), a Remote Procedure Call (RPC) protocol that runs over a connection-based transport protocol. It is a reliable, virtual-circuit transport protocol, such as TCP. See also connectionless protocol.
A service that establishes a logical connection between two partners for the duration that they want to communicate. Data transfer takes place in a reliable, sequenced manner. See also connectionless service.
connection point manager
In SNA, a component of the transmission control layer that performs session-level pacing of normal-flow requests, (b) checks sequence numbers of received request units, (c) verifies that request units do not exceed the maximum permissible size, (d) routes incoming request units to their destinations in the half-session, and enciphers and deciphers FMD request units when cryptography is selected.
- A technique used for establishing a pool of resource connections that applications can share on an application server.
- A process in which an application server or any product that interacts with a database on behalf of applications establishes a finite set of connections to the database and maps requests from the applications to this set of connections. Using these connections reduces the overall connection time for these applications and removes the cost of establishing a database connection from the host.
- A set of data that is used to establish a connection.
- A data management file that contains parameters that associate other defined profiles to the connection of two logical units.
In COBOL, a word or a punctuation character that associates a data name, paragraph name, condition name, or text name with its qualifier; links two or more values in a series; or forms a conditional expression.
- An algorithm that determines if two machines on different networks can communicate. If the machines can communicate, connectivity also determines which host names should be used and which TCP/IP routing information must be added.
- The capability of a system or device to be attached to other systems or devices without modification.
- The degree to which storage controls are joined to a direct access storage device (DASD) and processors to achieve adequate data paths (and alternative data paths) to meet data availability needs.
- An object class that is used for objects that connect different parts of the network and route or switch traffic between these parts. This class includes gateways, repeaters (including multiport repeaters), and bridges.
- A component that provides data connectivity and metadata integration for external data sources, such as relational databases or messaging software. A connector typically includes a stage that is specific to the external data source. See also bridge, operator, plug-in.
- In a query management command, the TO word in the EXPORT command, the FROM word in the IMPORT command, or the AS word in the SAVE DATA command.
- An arrow that connects activities in a process diagram.
- An electrical part used to join two other electrical parts.
- In Java EE, a standard extension mechanism for containers to provide connectivity to enterprise information systems (EISs). A connector consists of a resource adapter and application development tools (Sun). See also container.
- In Enterprise Service Tools, a well-defined, durable communication or programming interface to an enterprise information system. A connector provides a means of accepting data in a definable format, invoking an operation, and receiving results in a definable format.
- A plug-in that is used to access and update data sources. A connector accesses the data and separates out the details of data manipulations and relationships.
- A servlet that provides a portlet access to external sources of content, for example, a news feed from a website of a local television station.
- An installed component that provides the interface between the engine and the Tivoli Dynamic Workload Console and the Job Scheduling Console. See also engine, job scheduling console.
- The component of an adapter that uses business objects to send information about an event to an integration broker (inbound) or receive information about a request from the integration broker (outbound). A connector consists of the WebSphere Adapter Foundation Classes and the application-specific component of the connector.
- Object-oriented programming class that provides standard access to APIs that are native to specific content servers.
- An object class that is used for objects that connect different parts of the network and route or switch traffic between these parts. This class includes gateways, repeaters (including multiport repeaters), and bridges. See also network class.
connector configuration property
A configuration setting used by the connector. Connectors use standard and connector-specific configuration properties, which can be set using System Manager. After the values are set, they are saved in the repository. See also connector-specific configuration property, standard connector configuration properties.
The subcomponent of a connector that interacts with collaborations. A connector controller runs within InterChange Server and initiates mapping between application-specific and generic business objects, and manages collaboration subscriptions to business object definitions.
connector development kit (CDK)
C++ class libraries used when developing a C++ connector. These libraries contain predefined classes that are used to derive connector classes and libraries. Also, they provide methods for implementing services such as tracing and logging.
connector-specific configuration property
A configuration setting whose value determine how the connector interacts with the application and processes business objects. These properties are specific to each connector. See also connector configuration property, standard connector configuration properties.
An optional phase of link activation during which initial communication is established. It includes dialing and answering on switched links and can include modem equalization. The connect phase is followed by the optional prenegotiation phase or by the contact phase.
See connection-oriented network service.
A method of processing in which the records in the file are read, written to, or deleted in the order in which they exist in a file. See also random processing, sequential processing.
A classification type for inventory materials that are stored on-site but that are owned by an external vendor. The vendor retains ownership of the consignment items until they are used and paid for by the organization that is storing them.
A state of data. A transaction updates the data and checks its state. If the transaction detects any inconsistency, the change is rolled back and the data is returned to its previous consistent state. See also ACID property, ACID transaction.
- A group of copy relationships between virtual volumes or data sets that are maintained with the same time reference so that all copies are consistent in time.
- A group of volumes whose snapshots are taken at the same point in time. See also snapshot set, unassociated volume.
A unique identifier that is generated during precompilation, stored in the application source, and sent to the database when the package is bound. The consistency token is used to ensure the integrity of the shared application information that is stored in the database as a package.
- A type of read integrity in which a program is permitted to read only committed data - data that cannot be backed out after it has been passed to the program issuing the read request. Therefore, a consistent read request can succeed only when the data is free from all locks. See also read integrity, repeatable.
- Pertaining to a file system with no internal discrepancies.
consistent-change-data table (CCD table)
In data replication, a type of replication target table that is used for storing history, auditing data, or staging data. A CCD table can also be a replication source. See also condensed CCD table, external CCD table, internal CCD table, noncondensed CCD table, staging table.
An integrity option that Virtual Storage Access Method record-level sharing (VSAM RLS) obtains for a share lock on a record. Consistent read ensures that the reader does not see an uncommitted change made by another transaction.
consistent read explicit
An integrity option that Virtual Storage Access Method record-level sharing (VSAM RLS) obtains for a share lock on a record; VSAM RLS then keeps the share lock on the record until the end of transaction. This option is available only to Customer Information Control System (CICS) transactions because VSAM does not recognize the end of transaction for non-CICS usage. This capability is also referred to as repeatable read.
- A user interface that allows you to list and manage objects or entities, such as catalogs, hierarchies, and items. See also module.
- In COBOL, a function name associated with the operator's display station.
- A display station from which an operator can control and observe the system operation.
- A graphical user interface that simplifies the tasks for managing network security, such as monitoring events and scheduling scans.
- A user interface to a server, such as can be provided by a personal computer.
- A user interface for one or more administrative tasks. For example, the Integrated Solutions Console integrates the administrative tasks for multiple products and solutions into a single console.
console destination class
One of a set of named classes used to direct messages to certain consoles. Console destination classes also are used in specifying the messages to be received at a remote job processing (RJP) console.
A package of web-based applications, developed as standard portlets, that are installed into Integrated Solutions Console and displayed by the console to provide an interface for administering software and computer networks and resources.
console module deployment descriptor
An XML file that describes the following elements that need to be known when a console module is included in the Integrated Solutions Console framework: navigation tree contributions, page layout definitions, access control information, prerequisite portlet or console modules, and extension points.
- The process of combining two or more duplicate records from a structural data source into a single record in the cube. See also duplicate record.
- In a data tree, an entry that has one or more children.
In OSI, a path that indicates both quality-of-service values through a network QOS mode and values to indicate how splitting and multiplexing is to be accomplished. A CONS path can optionally be reserved for outbound communications to a specific DTE at an adjacent node.
- A language element that specifies an unchanging value. Constants are classified as string constants or numeric constants.
- Data that has an unchanging, predefined value to be used in processing.
- In an externally described display or printer file, an unnamed field that contains actual data that is passed to the display or printer but is unknown to the program passing it.
- A field defined by a display format to contain a value that does not change.
An optimization technique where constants used in an expression are combined and new ones are generated. Mode conversions are done to allow some intrinsic functions to be evaluated at compile time.
In AIXwindows, a class of objects from which a unique resource set can be inherited. For example, a PanedWindow widget can specify the size of its children by using the inherited XtNmin and XtNmax Constraint resources. The reference material associated with each widget specifies those that inherit resources from the Constraint class.
- A specification that limits the area where objects can be placed. For example, there can be a constraint that one object must be placed to the left of another object.
- A semantic condition or restriction. Certain constraints are predefined in the UML, others may be user defined. Constraints are one of three extensibility mechanisms in UML. See also comment, tagged value.
- In NetDA/2, the set of essential requirements that are specified with the node, connection, or application definitions. A change in a constraint value changes the input to the network design. See also parameters.
- In lexical analysis, a morphotactics rule that accurately processes compound words using dictionaries of word formation elements.
- A rule that limits the values that can be inserted, deleted, or updated in a table. See also check constraint, foreign key, informational constraint, primary key, referential constraint, unique constraint, unique key.
- A security specification that denies one or more users the ability to access a model component or to perform a modeling or authoring task.
- A place in the system where contention for a resource is affecting performance.
- A condition that is set between two activities whereby one activity depends on the other. A constraint is represented by an arrowed polyline object.
- A limit to set controls on the start and finish dates for project tasks, such as start-no-earlier-than or finish-no-later-than.
- A restriction on the possible values that users can enter in a field.
The attribute of applications that contain external data and require additional processing to make them reentrant. See also natural reentrancy.
- The phase of the software development life cycle in which the product is coded and tested.
- User-defined lines and circles that form reference geometry.
- In object-oriented programming, a special method used to initialize an object.
- A special C++ class member function that has the same name as the class and is used to create an object of that class.
- An XQuery expression that creates XML structures within a query. See also computed constructor, constructor function, direct constructor.
In XQuery, a constructor where the expression is a function invocation that creates a typed atomic value. See also constructor.
The ease with which customers can evaluate, buy, attain, install, and deal simply and effectively with product maintenance throughout the offering lifecycle. See also componentization.
- An entity that receives something from another. For example, a join thread that receives data from a scan thread is considered a consumer; in this case the join thread is considered a producer.
- See client.
- An application that receives and processes messages. See also message consumer.
An application that uses the data in the central data warehouse for a specific business need. Consumer applications use reporting and third-party online analytical processing (OLAP) tools as well as planning, trend-tracking, analysis, accounting, and data mining tools. See also source application.
The consumer direct business model supports commerce transactions involving products, services, or information between businesses and consumers. Consumers typically purchase goods or services directly from a business in a consumer direct scenario. The Madisons starter store is an example of a consumer direct business. See also B2B direct business model, direct sales business model.
The usage of a resource. See also saturation.
- A named email address to which reports and agent e-mails can be sent. Contacts are never authenticated.
- A person whose ID is configured to receive email or pager notifications of DB2 administration messages that are written to the administration notification log. The definition for each contact contains the name and the email or pager address of the person to receive notifications and is stored in the contact list of the system that is specified by the CONTACT_HOST configuration parameter of the DB2 administration server. See also administration notification log, administration notification message, orphaned contact.
A phase of link activation during which negotiation-proceeding XID3s are exchanged between the connected link stations to establish the primary and secondary roles of the link stations, the TG number to be used, and other characteristics of the link, and during which the mode-setting command is sent and acknowledged after the primary and the secondary roles are established. Link activation may consist only of the contact phase, or it may also have either a connect phase or a prenegotiation phase or both preceding the contact phase.
See contained container installable unit.
contained container installable unit (contained CIU)
A dedicated container installable unit (CIU) of an aggregated installable unit (aggregated IU). A contained CIU is intended to be deployed to a single hosting environment. For each instance of a contained CIU, a new, dedicated, installable unit (IU) instance is created (unless the installable unit is an update or fix) and a has component relationship is registered.
contained installable unit (contained IU)
A dedicated installable unit of an aggregation. A contained installable unit is intended to be deployed to one or more hosting environments. For each instance of a contained installable unit, a new dedicated installable unit instance is created (unless the installable unit is an update or fix) and a HasComponent relationship is registered.
See contained installable unit.
- A column or row that is used to arrange the layout of a portlet or other container on a page.
- A data storage location, for example, a file, directory, or device. See also table space.
- An object that holds entries. A container can be a catalog, containing items, a hierarchy, containing categories, or a collaboration area, which will hold items or categories only (depending on the type of the container with which it is associated). See also category, collaboration area, hierarchy, item.
- A software object that holds or organizes other software objects or entities.
- In a virtual tape server (VTS), a receptacle in which one or more exported logical volumes (LVOLs) can be stored. A stacked volume containing one or more LVOLs and residing outside a VTS library is considered to be the container for those volumes. See also stacked volume.
- An entity that provides life-cycle management, security, deployment, and runtime services to components. (Sun) See also connector, resource adapter.
- In CoOperative Development Environment/400, a system object that contains and organizes source files. An i5/OS library or an MVS-partitioned data set are examples of a container.
- An item that can contain other items. Tags that are added to a container inherit the position of the container.
In Backup, Recovery, and Media Services, an object that defines the types of physical containers that are used to store and transport removable media. Container classes are distinguished by attributes such as capacity and media class.
container installable unit (CIU)
An aggregated installable unit that is intended to be deployed on a single hosting environment. See also smallest installable unit.
container-managed persistence (CMP)
The mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean's container. (Sun) See also bean-managed persistence.
See container-managed transaction.
- The data portion of a document, as opposed to the properties that identify and describe the document. See also form data.
- Solution-related information or a product produced by a variety of organizations within IBM.
- Any launchable asset; the physical files that make up a course offering.
- In the Reusable Asset Specification (RAS), a section of an asset that contains a collection of artifacts providing a solution to a problem.
- The data semantics of a message that is received by the dynamic assembler.
See course structure.
- In an editor, the working area that can be used to create or edit source.
- In a web page that is based on a page template, the editable region of the page.
In publish/subscribe, an expression that is included as part of a subscription to determine whether a publication message is received based on its content. The expression can include wildcards.
content based routing (CBR)
An optional feature of the caching proxy that provides intelligent routing to back-end application servers. This routing is based on HTTP session affinity and a weighted round-robin algorithm.
content cache area
A storage area that holds temporary copies of files retrieved from remote file storage areas, as well as content retrieved from local or remote database storage areas. See also content storage area.
- A collection of subjects that users need to complete a universal task. Examples include planning, installing, administering and problem determination.
- See MIME type.
content delivery server
A server that delivers course content to the client and provides content tracking and navigation features. See also LMS server.
A unit of information that is a semantic representation of the subject and that is used in building the structure of an information type. Each information type defines a standard set of content elements. Content elements are defined by a schema or document type definition (DTD), which include required and optional properties that define the content element and which are used to structure the information types.
content-enabled vertical applications (CEVAs)
Software that automates the organization and processing of business-wide content (email, claims, receipts) in an industry-specific way. Content-enabled vertical applications are meant to make content more accessible by more people.
Content Engine operation
A programmatic step processor that acts on objects stored in an object store as part of a workflow. For example, an operation can publish a document or change the security of a document.
- In a local area network, a condition on a communications channel when two or more stations are allowed by the protocol to start transmitting concurrently and thus risk collision.
- A situation in which a transaction attempts to lock a row or table that is already locked.
- A condition on a session when two programs try to start a conversation at the same time.
To a network accessible unit (NAU), a session for which it was defined during session initiation to be the contention loser. See also contention-winner session.
In data communication, a mode of transmission in which any station may transmit whenever the line is available, This occurs when a session is between brackets. If stations transmit simultaneously, protocols determine who wins the contention.
The group of threads against which a given thread must compete for the CPU. If local, the thread competes against other threads in the same process. If global, the thread competes against all other threads in the system.
In data communications, a type of half-duplex line or data link control in which either user may transmit any time the line or link is available. If both users attempt to transmit at the same time, the protocols or the hardware determines who goes first.
To a network accessible unit (NAU), a session for which it was defined during session initiation to be the contention winner. See also contention-loser session.
A simple hypertext link in rich text or graphical artifacts that provides navigation only. See also trace link.
A code that is used to set the language or dialect used for browsers and report text, and the regional preferences, such as formats for time, date, money, money expressions, and time of day.
- Software designed to help businesses manage and distribute content from diverse sources.
- The process of managing, organizing, storing, tracking ownership of, and distributing information that was created for a common purpose.
See IBM content partner.
- An individual or team who produces content, for example: ITSO representatives, developerWorks brand content teams, and information development teams.
- A source for content that can be incorporated into a portal page as a portlet.
A role in the pre-defined workflow process shipped with WebSphere Portal content publishing. Users assigned to the role of Content Publisher have authority to publish content to production servers.
A software system that stores multimedia and business data and the related metadata required for users to work with that data. Content Manager and Content Manager ImagePlus for OS/390 are examples of content servers.
content storage area
A physical storage area, such as a file storage area, database storage area, or content cache area, used for content. See also content cache area, database storage area, file storage area.
A view of an object that shows the contents of the object in list form. Container views are provided for containers, and for any object that has container behavior, for example, a device object such as a printer. Icons view and details view are examples of contents views.
- The means that are used to group tracking data as part of a transaction flow.
- The hierarchy of elements within which an element exists. For example, the context of a term is the hierarchy of categories in which the term is contained.
- One or more units of recovery, with the associated application programs, resource managers, and protected resources. A context represents a work request in an application, and the life of a context consists of a series of units of recovery.
- The address space for a process, hardware registers, and related kernel data structures.
- The information about an issue that is captured during a scan.
- A set of one or more grammars that are enabled and used during a recognition action.
- An application's logical connection to the data source and associated DB2 ODBC connection information that allows the application to direct its operations to a data source. A DB2 ODBC context represents a DB2 thread.
- An object created for a service request in the business service model. The object contains one or more of the following details of information captured from the metadata: a business process, organization, role, channel, and domain specific information. See also context propagation.
- A named part of the CICSPlex SM environment that is currently being acted upon by CICSPlex SM. For configuration tasks, the context is a CICSPlex SM address space (CMAS); for all other tasks, it is a CICSplex. See also scope.
A search function that uses natural language terms to search for work items and source code in Java, C, C++, and COBOL. Regular expressions and wildcard characters are not required.
In the Performance Toolbox, menu items ending in a slash and three dots (/...). The slash and three dots signify that the line itself represents a list at the next hierarchical level. See also statistic line.
A context item that is a node. See also context item.
The position of the context item within the sequence of items. See also context item.
Describes to the WebSphere Voice Server process which contexts should be loaded into an engine. A DirectTalk for Windows application specifies which context profiles to load into the engine it has reserved.
In a multiple service transaction, the information about the details of a service request that passes from one invocation to another via the message header. See also context.
On z/OS, the authority checks that are performed when an application opens a queue and specifies that it will set the context in messages that it puts on the queue, or pass the context from messages that it has received to messages that it puts on the queue.
Help information about the specific choice or object that the cursor is on. The help is contextual because it provides information about the item in its current context. See also extended help.
The number of items in the sequence of items that is currently being processed. See also focus.
The activation of a process or activity either in a separate unit of work from the requestor or with the transaction attributes specified on the DEFINE PROCESS or DEFINE ACTIVITY command, rather than with those of the requesting transaction. The relationship of the process or activity to the requestor is as between separate transactions, except that data can be passed between the two units of work. A context switch occurs when a process or activity is activated by a RUN command, but not when it is activated by a LINK command.
The type of user assistance that is readily accessible from the product and that provides information about the user interface element with which the user is interacting. A context-sensitive help system is one implementation of contextual assistance, but contextual assistance can be provided in a variety of ways. For example, contextual assistance includes hover help, field-level help, and other user interface topics.
For thin-provisioned volumes that are configured to automatically expand, the unused real capacity that is maintained. For thin-provisioned volumes that are not configured to automatically expand, the difference between the used capacity and the new real capacity.
In mainframe computing, a relationship that is created in a control unit between a device and a channel when the channel accepts unit-check status. Contingent allegiance causes the control unit to guarantee access; that is, the control unit does not present the busy status to the device. It also enables the channel to retrieve sense data that is associated with the unit-check status on the channel path associated with the allegiance. See also implicit allegiance, reserved allegiance.
- A character represented by a plus sign (+) that lets a command be extended to more than one line.
- In REXX, a character represented by a comma that lets a clause be extended to more than one line. This character is functionally replaced by a blank and cannot be used in the middle of a string or comment.
- A line of a source statement where characters are entered when the source statement cannot be contained on the previous line or lines.
- In RPG, additional lines specified on the file description specifications to provide more information about the file being defined.
- An additional line (or lines) required to continue the coding of a CL command or a DDS keyword and its value.
- In RLU, a report line or sample line that is part of a record format or a group of sample lines excluding the first line in the record format or group of sample lines.
A set of ODF programs that search the DST for reports that are ready to print when the continuation/wait indicator for a distribution is C (continued) or the DRT status has been changed to continued by an initiate transaction from the RL panel.
A series of connected forms that feed continuously through a printing device. The connection between the forms is perforated so that the user can tear them apart. Before printing, the forms are folded in a stack, with the folds along the perforations. See also cut-sheet paper.
Continuous Linked Settlement (CLS)
The method of settling payments arising from foreign exchange trades that effects settlement by simultaneously debiting and crediting counterparty accounts in all relevant currencies across the CLS bank.
continuously powered main storage (CPM)
The function of supplying power only to main storage (cards) for a varied amount of time (for example, one day) when utility power is lost on systems that have a system power control network (SPCN).
continuous speech recognition
Recognition of words spoken in a continuous stream. Unlike isolated or discrete word recognition, users do not have to pause between words. See also discrete word recognition.
- The set of business policy assertions that have to be met by service provider at run time based on the context and content.
- In WebSphere Commerce, an agreement representing the terms and conditions that apply to a transaction.
In the Integration Flow Designer, a component that does not display the sources and targets associated with it. See also expanded component.
A process that occurs when the length of a converted string is smaller than that of the source string. See also expanding conversion.
- The primary asset that can contain Service Component Definition Language (SCDL) with composite definitions, as well as artifacts such as Java classes and Web Services Description Language (WSDL) and XML Schema Definitions (XSD).
- Data that is entered into an e.List in the Contributor application.
Contributor Administration Console
A tool that enables administrators to publish an Analyst business model to the Web, manage access settings and model distribution, and configure the user's view of the model.
- See widget.
- In WebSphere MQ and VisualAge RPG, the result of selecting a part from the parts palette and placing it on the design window. An example of a control is an entry field.
- A component of a graphic interface that allows a user to select choices or type information. For example, list boxes, check boxes, push buttons, and entry fields.
In the Distributed Computing Environment (DCE) Cell Directory Service (CDS), an access right that grants users the ability to change the access control on a name and to perform other management tasks, such as replicate a directory or move a clearinghouse. See also clearinghouse.
A type of analysis that displays variations in values of the business measures over a specific period of time. This type of analysis reduces data variation, and is often used for quality control. Allowable variation is three times the standard deviation of the data.
- In the Virtual Storage Access Method (VSAM), a group of control intervals used as a unit for formatting a data set before adding records to it. In a key-sequenced data set (KSDS), each CA is pointed to by a sequence-set index record, and used by VSAM for distributing free space and for placing a sequence-set index record adjacent to its data. See also control block.
- See control block.
- A storage area used by a program to hold control information.
- In the IBM Token-Ring Network, a specifically formatted block of information provided from the application program to the Adapter Support Interface to request an operation.
- In CICS, a storage area used to hold dynamic data during the execution of control programs and application programs. See also control area, control table.
control blocks in common (CBIC)
A facility with which a user can open a Virtual Storage Access Method (VSAM) data set so that the VSAM control blocks are placed in the common service area (CSA) of the MVS operating system. CBIC provides the capability for multiple memory accesses to a single, VSAM, control structure for the same VSAM data set.
A call stack entry used as the point to which control is transferred when an unmonitored error occurs or a high-level language termination verb is used. A control boundary can be either of the following: a) any Integrated Language Environment (ILE) call stack entry for which the immediately preceding call stack entry is in a different activation group, or b) any ILE call stack entry for which the immediately preceding call stack entry is an original program model (OPM) program.
The graphical interface that lets a user administer DB2 databases and perform a variety of tasks including creating objects and monitoring performance. The Control Center shows database objects (such as databases and tables) and their relationships to each other.
- A character that by itself or as the start of a sequence is a representation of a control function in a particular context. The coded representation of a control character consists of a single bit combination.
- A character whose occurrence in a particular context initiates, modifies, or stops a control function. See also carriage control character.
- A command that allows conditional or looping logic flow in shell procedures.
- In WebSphere MQ on UNIX and Linux systems and WebSphere MQ for Windows, a command that can be entered interactively from the operating system command line. Such a command requires only that the WebSphere MQ product be installed; it does not require a special utility or program to run it.
In Tivoli Enterprise Data Warehouse, the component that contains the metadata that describes the data in the warehouse, including the source of the data, how the data was transformed before being placed in the warehouse, when the data was collected, and the formats used to publish the data (for example, the star schemas used to create Tivoli Enterprise Data Warehouse data marts).
control data set (CDS)
A data set containing configurational, operational, and communication information. The z/OS storage management subsystem (SMS), DFSMSrmm, and DFSMShsm use control data sets. See also active control data set, backup control data set, communications data set, migration control data set, offline control data set, source control data set.
control data set ID
In DFSMSrmm, a 1 - 8 character identifier for the DFSMSrmm control data set (CDS) used to ensure that, in a multi-system, multi-complex environment, the correct management functions are performed.
control data structures
Data structures needed to manage file data and metadata cached in memory. Control data structures include hash tables and link pointers for finding cached data; lock states and tokens to implement distributed locking; and various flags and sequence numbers to monitor updates to the cached data.
- In RPG, one or more fields that are compared from record to record to determine when the information in the fields changes. When the information changes, the control level indicator (L1 through L9) assigned to a control field is set on.
- In Application Development ToolSet, one or more specified fields that are compared to determine the record sequence in the output file.
- In data communications, a field within a frame that contains the commands, responses, sequence numbers, and poll or final bit for data link control.
- In MERVA Link, a field that is part of a MERVA message on the queue data set and of the message in the TOF. A control field is written to the TOF at nesting identifier 0. Messages in SWIFT format do not contain a control field.
- In AFP Utilities, an input field on the screen view that is used to move the image area up, down, left, or right.
- An automatically generated file that records process specifications and the success or failure of processing.
- In DFSMShsm aggregate backup and recovery processing, one of three aggregate files generated by the aggregate backup process. It contains the catalog, allocation, volume, and related information necessary to perform aggregate recovery.
- In DB2 data warehousing, a graphical model that sequences data flows and mining flows, integrates external commands, programs, and stored procedures, and provides conditional processing logic for a data warehouse application.
- Transmission of control indicators over a link when there is no user data available to send. This is often necessary during complex procedures, such as establishing synchronization points.
- The sequence that dictates the order in which steps of a business process are executed. The sequence can include branching based on decisions, iterating over a set of steps until a certain condition is reached, and so on. In a collaboration, control flow refers to the path that a scenario takes, which depends on the order of action nodes in an activity diagram. When an action node has multiple transition links, the path reflects the state of those links. This path is illustrated in a top-to-bottom direction. See also transition link.
- In TELNET, the standard representation for interconnection functions. The i5/OS implementation of these functions includes IP, AO, AYT, and SYNCH.
- An element of a character set that affects the recording, processing, transmission, or interpretation of data, and that has a coded representation of one or more bit combinations (see ISO/IEC 6429).
- A command to a processing component represented by a single bit combination (a control character) or a sequence starting with a control character followed by the parameter values for the command. Some examples of such functions are: Horizontal Tabulation, nul-terminated text strings in C, End of File, or ESCape sequence indicating change in Colour for the following text.
In Backup, Recovery, and Media Services, a group of libraries, special values, special operations, and lists that share common characteristics and are processed together due to their similar process cycles. The control groups used are backup control groups and archive control groups.
control initiate (CINIT)
A network services request sent from a system services control point (SSCP) to a logical unit (LU) asking that LU to establish a session with another LU and to act as the primary end of the session.
- In a key-sequenced data set or file, the set of records that an entry in the sequence-set index record points to.
- A fixed-length area of direct access storage in which VSAM stores records and creates distributed free space. The control interval is the unit of information that VSAM transmits to or from direct access storage. A control interval always includes an integral number of physical records.
control interval definition field (CIDF)
In VSAM, a field located in the 4 bytes at the end of each control interval; it describes the free space, if any, in the control interval. See also record definition field.
control interval update sequence number (CUSN)
An indicator used in a data-sharing environment to determine which sharing partner last read a control interval (CI). IMS compares the value of the CUSN for each CI to determine whether a CI should be updated during area restart or recovery.
- The keyboard key labeled Ctrl.
- A key combination, made by pressing the Ctrl key followed by another key on the keyboard, that performs a function or makes a special character.
control language procedure (CL procedure)
The single Integrated Language Environment (ILE) procedure that is contained within a CL module. A CL procedure can be called by other ILE procedures when the CL module is bound with other ILE modules to create a program object (*PGM) or service program object (*SRVPGM).
control language source program
A set of control language (CL) source statements that can be compiled into either an original program model (OPM) program or an Integrated Language Environment (ILE) module.
A flow that proceeds from one flow object to another through a sequence flow link but is subject to either conditions or dependencies from another flow as defined by a gateway. Typically, a controlled flow is a sequence flow between two activities, with a conditional indicator or a sequence flow that is connected to a gateway.
controlled load service
In QoS, a level of service that supports the class of applications that are highly sensitive to overloaded networks. This service emulates a lightly loaded network in congested environments. For example, audio and videoconferencing would work well using controlled load service.
A RACF function with which an installation can control who can run RACF-controlled programs. See also dirty address space.
controlled repetitive loop
In REXX, a repetitive DO loop in which the repetitive phrase specifies a control variable. The variable is given an initial value before the first run of the instruction list and is then stepped (by adding the result of an optional expression) before the second and subsequent times that the instruction list is run.
See quiesced shutdown.
- The functional component responsible for resource management (load balancing and admission control). The controller communicates with one or more data pumps to initiate and terminate connections to clients.
- A device that coordinates and controls the operation of one or more input/output devices (such as workstations) and synchronizes the operation of such devices with the operation of the system as a whole.
- A component or a set of virtual storage processes that schedules or manages shared resources.
- In Tivoli Workload Scheduler for z/OS, the component that runs on the controlling system and contains the tasks that manage the plans and databases.
- See control unit.
- A device that translates interactions with the view, such as mouse clicks and keystrokes, into updates to be performed on the representation model, instructing the model and/or the view to change as appropriate. See also graphic component.
A command that interacts with a web controller directly. On completion, a controller command returns the name of a view task to be executed. The web controller determines the correct implementation class of the view command and then invokes it. See also task command.
The process of creating configuration descriptions for the local (device configuration) and remote (communications configuration) controllers that make up a data processing system.
controller description (CTLD)
An object that contains a description of the characteristics of a controller that is either directly attached to the system or attached to a communications line. The system-recognized identifier for the object type is *CTLD.
In RPG, an indicator (L1 through L9) used to specify certain fields as control fields and to control the operations that are performed at total and detail time in the RPG program cycle.
controlling logical unit
In VTAM, a logical unit with which a secondary logical unit (other than an application program) is automatically put in session whenever the secondary logical unit is available. A controlling logical unit can be either an application program or a device-type logical unit. See also automatic logon.
The active workstation from which the process group for that process was started. Each session may have at most one controlling terminal associated with it, and a controlling terminal is associated with exactly one session.
control logical unit (CLU)
A logical unit that resides in a Transaction Processing Facility (TPF) type 2.1 node and that is used to pass private protocol request units between this TPF type 2.1 node and the logon manager (a VTAM application program). The communication flow between the control logical unit and the logon manager enables a logical unit controlled by VTAM to establish a session with TPF.
See system menu.
- An incoming message received from a clearing channel or the S.W.I.F.T. network that indicates the status of the payment.
- In Q replication, a message from a Q Apply program or a user application that requests a Q Capture program to activate or deactivate a Q subscription or a publication, invalidate a send queue, or confirm that a target table has been loaded.
- In Internet communications, a message that governs the aspects of a tunnel and sessions within a tunnel.
- A token that performs a control function such as the symbols ().
- For logical unit (LU) 6.2, a service transaction program that describes and controls the availability of certain resources. For example, it describes network resources accessed by the local LU, and it controls session limits between the LU and its partners.
- In APPN, a component of a node that manages resources of that node and optionally provides services to other nodes in the network. Examples are a system services control point (SSCP) in a type 5 node, a physical unit control point (PUCP) in a type 4 node, a network node control point (NNCP) in a type 2.1 (T2.1) network node, and an end node control point (ENCP) in a T2.1 end node. See also physical unit.
- In computer graphics, a point in real space that controls the shape of a spline curve. The system provides hardware support for wire frame rational cubic splines, and for NURBS surfaces, the specifications of which require four control points.
control point management services (CPMS)
A component of a control point, consisting of management services function sets, that provides facilities to assist in performing problem management, performance and accounting management, change management, and configuration management.
control point management services unit (CP-MSU)
The message unit that contains management services data and flows between management services function sets. This message unit is in general data stream (GDS) format. See also management services unit, multiple-domain support message unit, network management vector transport.
The authority to completely control an object, which includes the authority to access, drop, or alter an object and the authority to extend privileges on the object to other users or to revoke their privileges on the object.
- In SQL replication, a database server that contains replication control tables for the Capture program, Apply program, or Replication Alert Monitor. See also Apply control server, Apply server, Monitor control server, Q Capture server.
- In database replication, the database location of the applicable subscription definitions and Apply program control tables.
- A statement placed into an input stream to identify special processing options for jobs
- In RPG, an entry on a control specification.
- In programming languages, a statement that is used to interrupt the continuous sequential processing of programming statements. Conditional statements such as IF, PAUSE, and STOP are examples of control statements.
- A statement block in the policy that is executed when the terms of the control condition are satisfied.
- The beginning and ending segments (header and trailer) of EDI-enveloped documents.
A CICS area that holds the dispatch control area (DCA), interval control elements (ICEs), automatic initiate descriptors (AIDs), queue element areas (QEAs), and other control information. Generally, the control subpool occupies only one page.
- In CICS, a storage area used to define or describe the configuration or operation of the system. See also control block.
- A pre-defined table used by automatic journals to eliminate acquisitions, intercompany balances and intercompany profit.
In mainframe computing, a logical subsystem that is accessed through an ESCON or FICON I/O interface. One or more control-unit images exist in each control unit. Each image appears as an independent control unit, but all control-unit images share a common set of hardware facilities.
- An automation of the process used by service representatives to vary off and vary on subsystem resources for maintenance.
- A software mechanism that the ESS uses to request that an operating system of a zSeries or S/390 host verify that one or more subsystem resources can be taken offline for service. The ESS can use this process to automatically vary channel paths offline and online to facilitate bay service or concurrent code installation. Depending on the operating system, support for this process might be model-dependent, might depend on the IBM TotalStorage Enterprise Storage Server Subsystem Device Driver, or might not exist.
control unit terminal mode (CUT mode)
An IBM protocol used for communications with an IBM 3174 or 3274 Control Unit or other appropriate interface unit. In this protocol, a program in the workstation emulates a 3278 or 3879 terminal for a user at a virtual terminal, and the interface unit is responsible for enforcing the protocol. See also distributed function terminal.
A function that performs a frequently needed series of tasks automatically to create or manage widgets or other code structures. Convenience functions are included in the AIXwindows Toolkit.
The process of adding a small number of cartridges to an Automated Tape Library Dataserver (ATLDS) without interrupting automated operations. The cartridges are added by inserting them directly into cells in a convenience input station.
Personal computer memory that is addressed by DOS from 0 KB to 640 KB. See also expanded memory.
See 1A keyboard.
- Interaction between a computer and a user.
- See speech recognition session.
- A connection between two programs over a session that allows them to communicate with each other while processing a transaction. See also session, SQL processing conversation, transaction.
- A series of related messages between client and server components of a system, such as the request/response exchange between a browser and a server.
- A dialog between a terminal and a message processing program using IMS conversational processing facilities. Also, a dialog between an LU 6.2 program and an IMS application program. A conversation between a terminal and a message processing program is significant status that is kept in RM, if RM is used. Status for a held conversation is not kept in RM. The IMS conversation is represented by a CCB. See also conversational processing.
- In FEPI, a sequence of related data transmission between a FEPI application and a particular back-end system. This is analogous to a CICS APPC conversation, but it is not the same as an IMS conversation, and it is not related to CICS conversational mode.
- Pertaining to an SNA conversation or a dialog between two programs.
- Pertaining to a communication model where two distributed applications exchange information in a dialog.
- Pertaining to a program or a system that conducts a dialog with a terminal user, alternately receiving and transmitting data. See also pseudoconversational design.
An optional IMS facility with which an application program can accumulate information acquired through multiple interchanges with a terminal, even if the program stops between interchanges. See also conversation, IMS conversation.
See session key.
See end-user verification.
The condition of a conversation, such as send or receive state. The conversation state reflects the actions that have been taken pertinent to that conversation and determines what the next set of actions may be.
- In DFSMSrmm, the process of moving removable-media-library inventory from another media management system to DFSMSrmm. DFSMSrmm manages the inventory and policies after conversion.
- The process of changing from one method of data processing to another or from one data processing system to another. Changing a code point that is assigned to a character in one code page to its corresponding code point in another code page is an example of conversion.
- In programming languages, the transformation between values that represent the same data item but belong to different data types. Information may be lost because of conversion since accuracy of data representation varies among different data types.
- The process of changing from one form of representation to another. Changing a code point that is assigned to a character in one code page to its corresponding code point in another code page is an example of conversion.
conversion mode (CM)
The first stage of the version-to-version migration process. In a DB2 data sharing group, members in conversion mode can coexist with members that are still at the prior version level. Fallback to the prior version is also supported. When in conversion mode, the DB2 subsystem cannot use most new functions of the new version. See also conversion mode*, enabling-new-function mode, enabling-new-function mode*, new function mode.
conversion mode* (CM*)
A stage of the version-to-version migration process that applies to a DB2 subsystem or data sharing group that was in enabling-new-function mode (ENFM), enabling-new-function mode* (ENFM*), or new-function mode (NFM) at one time. Fallback to a prior version is not supported. When in conversion mode*, a DB2 data sharing group cannot coexist with members that are still at the prior version level. See also conversion mode, enabling-new-function mode, enabling-new-function mode*, new function mode.
In a print function call, a specification of how the system is to place the value of zero or more format parameters in the output stream. Each conversion specification contains a % (percent) symbol that is followed by conversion modifiers and a conversion code.
- A table that contains a set of characters that can be replaced with alternative characters.
- An object that contains a set of hexadecimal characters used to convert one or more characters of data. The table can be used for the conversion of data being moved between the system and a device. For example, data stored in one coded character set may need to be displayed or entered on display devices that support a different coded character set. The table can also be used to specify an alternative collating sequence or field conversion functions. The system-recognized identifier for the object type is *TBL.
An intermediate form of a character-coded command that is produced by VTAM through use of an unformatted system services definition table. The format of a converted command is fixed; the unformatted system services definition table must be constructed in such a manner that the character-coded command (as entered by a logical unit) is converted into the predefined, converted command format. See also unformatted.
- In Enterprise JavaBeans (EJB) programming, a class that translates a database representation to an object type and back.
- A device that converts data from one form to another without altering the underlying information.
convert in place
See in-place conversion.
See cookie identifier.
A technique used for conducting identity theft or session hijacking. By manipulating the information stored in a browser cookie, hackers assume the user!/s identity and have access to that user!/s information for malicious purposes.
In the Systems Application Architecture (SAA) environment, a type of distributed application in which the user interface portion of the application runs on a programmable work station while some or all of the remaining code runs on one or more linked systems.
CoOperative Development Environment/400
A feature of the WebSphere Development Studio Client licensed program that provides System i application development and maintenance tools for editing, compiling, and debugging third-generation programming languages.
Distributed processing in which processors, typically a programmable workstation and a host computer, accomplish the work of an application by means of coordinated or synchronized use of processing functions and system resources.
- A member of an ordered set of N numbers that identifies a position in N-dimensional space. For example, in a two-dimensional map of the Earth, a position can be referenced by two coordinates. The first coordinate identifies the latitude value of the position, and the second coordinate identifies the longitude value of the position.
- To bring into a common action, movement, or condition.
coordinated online change
See global online change.
- A mapping from the two-dimensional data space to the two-dimensional space of screen coordinates. For a cartesian chart, with two straight-line axes, the coordinate system can be described by a 2-D affine transformation.
- A given convention for locating pixels on a given display or window, where, in AIXwindows, X is the horizontal axis and Y is the vertical axis. The origin is [0,0] at the upper-left or lower-left corner, depending on the convention in use. For a window, the origin is at the upper left or lower left (depending on the convention in use), inside the border. Coordinates are discrete and specified in pixels. Each window and pixmap has its own coordinate system.
- A reference framework that is used to define the positions of points in space in two or three dimensions.
- A reference system for the definition of a location of a point on the earth. For example, the geographical coordinate system uses latitude and longitude.
coordinating address space (CAS)
The function that sets up the CICSPlex SM component topology and that supports the MVS/TSO ISPF graphic user interface to CICSPlex SM. CAS is used in CMAS-to-CMAS links.
The agent that is directly responsible for processing requests from and responding to an application. If the connection concentrator is not used, the agent remains associated with the application during the life of the application and initiates subagents that work for the application. See also subagent.
In a query that spans multiple database servers, the server in which the query is initiated. To respond to the query, the coordinating server starts sessions on the other servers involved in the query. See also distributed query, remote table, subordinate server.
- The system component that coordinates the commit or rollback of a unit of work that includes work that is done on one or more other systems.
- In a multi-MVS configuration, a region that receives requests from master regions to initiate a takeover. It then instructs all the alternate regions to take over. See also master, subordinate.
coordinator control subsystem (CCTL)
In IMS, the transaction management subsystem that communicates with the DRA, which in turn communicates with DBCTL. In a CICS-DBCTL environment, the CCTL is CICS. The term is used in a number of IMS operator commands that apply to DBCTL, and in the IMS manuals.
See coordinator partition.
In a RACF data sharing group, the system on which the system operator or administrator enters a RACF command that is propagated throughout the group. See also peer system.
copper chip technology
A technology in which chips exploit the capabilities of copper circuitry, which passes electrical currents more easily than aluminum. Aluminum has been the traditional material used in the wires that connect the "switches," or transistors, in silicon chips. Copper chip technology produces smaller, faster chips that have enormous capacity for holding and transmitting information.
- In personal computers, a microprocessor on an expansion board that extends the address range of the processor in the system unit or adds specialized instructions to handle a particular category of operations.
- A supplementary processor that performs operations in conjunction with another processor.
- A piece of source code that is designed to be copied into many source programs.
- In Enterprise Service Tools, a COBOL header file that describes all the columns in an underlying data file.
- A policy object containing attributes that control how backup versions or archive copies are generated, where backup versions or archive copies are initially located, and when backup versions or archive copies expire. A copy group belongs to a management class. See also archive copy group, backup copy group, backup version, management class.
- One or more copies of a sheet of paper or form. Each copy can have modifications, such as text suppression, page position, forms flash, overlays, paper-source, and duplex printing.
- An internal object in a form definition or a print data set that controls such items as modifications to a form, page placement, and overlays.
The method or printer mechanism for distinguishing consecutive copies of a single data set or print file. In the continuous-forms stacker, the method consists of the alternation between one, two, or three vertical bars placed on the left carrier strip between forms. In the burster-trimmer-stacker or for cut-sheet paper, the mechanism consists of offset stacking.
Copy Services CLI
See Copy Services command-line interface.
Copy Services client
Software that runs on each ESS cluster (or, optionally, in an external cluster) in the Copy Services server group and that performs the following functions: communicates configuration, status, and connectivity information to the Copy Services server; and performs data-copy functions on behalf of the Copy Services server. See also backup Copy Services server, primary Copy Services server.
Copy Services command-line interface (Copy Services CLI)
Software that invokes ESS Copy Services functions from the command-line interface (CLI) of hosts that are attached to the ESS. See also command-line interface.
Copy Services domain
See Copy Services server group.
Copy Services server
An ESS cluster (or, optionally, in an external cluster) designated by the copy services administrator to perform the ESS Copy Services functions. See also backup Copy Services server, primary Copy Services server.
Copy Services server group
A collection of user-designated ESS clusters participating in Copy Services functions managed by a designated, active, Copy Services server. See also backup Copy Services server, primary Copy Services server.
copy storage pool
A named set of volumes that contain copies of files that reside in primary storage pools. Copy storage pools are used only to back up the data that is stored in primary storage pools. A copy storage pool cannot be a destination for a backup copy group, an archive copy group, or a management class (for space-managed files). See also destination, primary storage pool, server storage, storage pool volume.
A named set of SMS storage groups that are to be used as containers for copy pool volume copies. A copy target is an SMS construct that lets you define which storage groups are to be used as containers for volumes that are copied by using FlashCopy functions.
A point-in-time FlashCopy copy that is managed by hierarchical storage management (HSM.) Each copy pool has a version parameter that specifies the number of copy versions to be maintained on disk.
See Common Object Request Broker Architecture.
A single chip that houses a central processing unit (CPU) and is a component in the larger circuit design of a computer. A single chip can only contain one CPU, but a processor can contain multiple cores. See also dual-core, multi-core, processor value unit.
In AIXwindows, the top-level superclass from which all widgets and gadgets are derived. Core consists of three subclasses (Object, RectObject, and WindowObj) that collectively provide the appearance resources and behavioral resources required by all widgets and gadgets in the AIXwindows toolkit.
core attribute collection
A system-defined attribute collection that groups all mandatory, primary key, or path attributes for a given specification. Core attribute collections are used in the user interface to give users access to the required fields when no view has been defined. See also attribute, attribute collection, view.
A process by which the current state of a program is preserved in a file. Core dumps are usually associated with programs that have encountered an unexpected, system-detected fault, such as a segmentation fault or a severe user error. A programmer can use the core dump to diagnose and correct the problem. See also core file.
A file that preserves the state of a program, usually just before a program is terminated because of an unexpected error. See also core dump.
Core Pluglet Framework (CPF)
A runtime environment for pluglets. See also pluglet.
A component, resource, or service that is needed in parallel with a component. In other words, the components, resources, or services listed as corequisites of a component must be installed and configured in conjunction with the component. See also requisite.
A temporary solution to or a bypass of a problem that is necessary to provide a complete solution to correct a problem. The system requires that you apply the corequisite fix with the PTF that needs it. See also distribution requisite fix, prerequisite fix.
A resource that is provided by the console and is required for basic operation. See also resource type.
corrective service diskette
A diskette provided by IBM to registered service coordinators for resolving user-identified problems with previously installed software. This diskette includes program updates designed to resolve problems.
A reference to a column of a table or view that is outside a subquery. See also correlated subquery.
A subquery that contains a correlated reference. See also correlated reference.
- In transaction monitoring, the process of tracking hierarchical relationships among transactions and associating transactions with their nested subtransactions.
- A mechanism that bridges a point in a process flow between two or more process instances.
- The relationship, captured in a correlation expression, that describes how an incoming event is matched with one or more monitoring context instances to which it will be delivered.
- A record used with business processes and state machines to allow two partners to initialize a transaction, temporarily suspend an activity, and then recognize each other again when that activity resumes.
- The process of analyzing event data to identify patterns, common causes, and root causes. Correlation analyzes the incoming events for known states, using rules and relationships.
See event correlation.
See correlation identifier.
- An application-defined identifier assigned to distributions for the user's information.
- A field in a message that provides a means of identifying related messages. Correlation identifiers are used, for example, to match request messages with their corresponding reply message.
- In DB2 for z/OS, an identifier that is associated with a specific thread. In TSO, the correlation ID is either an authorization identifier or the job name.
An identifier specified and used within a single SQL statement as the exposed name for objects such as a table, view, table function reference, nested table expression, or data change table reference. Correlation names are useful in an SQL statement to allow two distinct references to the same base table and to allow an alternative name to be used to represent an object.
In OSI X.400, a table that records details of distributions sent and received across a gateway (such as VM/MVS bridge or X.400). A correlation table is used by a gateway to forward acknowledgments, as appropriate, after they are received.
- A value passed between two or more programs that allows correlation or identification of mutual resources.
- Information that identifies a relation among things. An example is a variable field of a response that identifies the corresponding request.
See Conditions of Satisfaction card.
A starter store enhancement that enables two shoppers to explore a store, view products, and chat about products. Coshopping provides real-time synchronization of the web browsers of two users to create a single collaborative shopping session controlled by a single user.
COS Naming Directory
See CORBA Object Services Naming Directory.
- The sum of the labor and non-labor capital outlay that is required to perform a project.
- A number that is used as a weighting mechanism to differentiate one resource from another where a smaller value is always preferred.
- The estimated total resource usage that is necessary to run the access plan for a statement (or the elements of a statement). Cost is derived from a combination of processor cost (in number of instructions) and I/O cost (in numbers of seeks and page transfers).
A category into which DB2 for z/OS places cost estimates for SQL statements at the time the statement is bound. The cost category is externalized in the COST_CATEGORY column of the DSN_STATEMNT_TABLE when a statement is explained.
cost variance at completion (CVAC)
See variance at completion.
- A specialized metric used to keep track of the number of occurrences of a specific situation or event. For example, you can use a counter to track the number of times that a task is started within a process, where that task is contained in a loop.
- A representation of information that is cumulative up until the sample is taken. The counter counts values that increase, such as the number of deadlocks. Counters are reset when an instance or a database is stopped and restarted. See also gauge.
- A data item used for storing numbers or number representations in a manner that permits these numbers to be increased or decreased by the value of another number or to be set to an arbitrary value.
- In the X.25 API, a variable that is increased by one when a packet arrives and is decreased by one when a packet is received; it can be used to notify the application program of incoming packets.
- A binary string that is used by some block cipher modes in an exclusive-OR (XOR) operation. It is incremented and then applied in the encryption or decryption of each block of data. For a given key, a counter should never be repeated.
- A register or storage location used to accumulate the number of occurrences of an event.
A non-redundant portion of a redundant storage area network (SAN). A counterpart SAN provides all the connectivity of the redundant SAN but without the redundancy. Each counterpart SAN provides an alternate path for each SAN-attached device. See also redundant SAN.
The first field of a count-key-data (CKD) record. This field contains eight bytes: the first four bytes identify the track address, which includes the cylinder and head that are associated with the track; the fifth byte identifies the record on the track; the sixth byte identifies the length of the record's key field; the last two bytes identify the length of the record's data field.
- In mainframe computing, a data-record format employing self-defining record formats in which each record is represented by up to three fields: a count field identifying the record and specifying its format, an optional key field that can be used to identify the data area contents, and an optional data field that typically contains the user data. See also data record.
- An ESA/390 architecture for a direct access storage device (DASD) logical device that specifies the format of and access mechanisms for the logical data units on the device. The logical data unit is a track that can contain one or more records, each consisting of a count field, an optional key field, and an optional data field. See also custom volume.
count-key-data device (CKD)
A disk storage device for storing data in the format: count field normally followed by a key field followed by the actual data of a record. The count field contains, in addition to other information, the address of the record in the format: CCHHR (where CC is the two-digit cylinder number, HH is the two-digit head number, and R is the record number) and the length of the data. The key field contains the record's key (search argument).
See S/390 storage.
- In X.25 communications, the 3-digit number that precedes the national terminal number in the network user address for public networks.
- From the ISO standard, a 2-character abbreviation for a country, for example "CN" for China and "BE" for Belgium. Country codes and language codes together form the basis for local names. See also language code.
country extended code page (CECP)
An EBCDIC code page that is extended by the addition of code points for characters needed in the language used by a specific country. Using country extended code page (CECP) support, a German panel, for example, can be displayed on a French CECP terminal with all common characters displayed correctly
See country identifier.
See territory code.
couple data set (CDS)
A data set that contains information related to a sysplex, its systems, cross-system coupling facility (XCF) groups, and their members. See also sysplex couple data set.
coupled extended remote copy (CXRC)
In z/OS or S/390 environments, a technique that supports synchronous copy operations in large environments that have an expanded number of primary-storage controls and direct access storage device (DASD) volumes; this number is in excess of those supported by a single data-mover configuration. Installations can have configurations consisting of thousands of volumes in multiple extended remote copy (XRC) sessions; coordination among the sessions ensures that all volumes will be recovered to a consistent time. CXRC greatly expands upon the ability of XRC to provide remote disaster-recovery protection across a sysplex.
- The dependency that components have on one another. See also cohesion.
- Two volumes that are paired for a remote mirroring purpose.
coupling facility channel
A high-bandwidth fiber-optic channel that provides the high-speed connectivity required for data sharing between a coupling facility and the central processor complexes (CPCs) directly attached to it.
coupling facility resource management (CFRM)
A component of z/OS that provides the services to manage coupling facility resources in a Parallel Sysplex. This management includes the enforcement of CFRM policies to ensure that the coupling facility and structure requirements are satisfied.
A function of the cross-system coupling facility (XCF) that transfers data and status information among the members of a group that reside in one or more of the MVS systems in a sysplex.
In the DCE Distributed Time Service, a local server that requests a time value from a randomly selected global server. The time value returned is used to synchronize a local access network (LAN) with all other parts of the network.
- A set of learning activities designed to meet one or more specific objectives. A course is stored in the LMS as a master. from which multiple offerings can be created.
- The body of content that is taught, including general information such as the course description for the course catalog, an outline of materials covered, a schedule of sessions, and, optionally, assessments such as tests or evaluations. More than one person can be listed as an instructor for each course.
A compressed package interchange file (PIF) containing course structure and metadata, and possibly course content. This is the form in which courses are imported into the Lotus Learning Management System.
A database or area in an RSR environment that is tracked by a tracking subsystem. Recovery information is not maintained by the tracking subsystem for databases or areas that are not covered.
See collection point block.
The level of network services provided by the control point (CP) in an APPN end node or network node. CP capabilities information is exchanged during the activation of CP-CP sessions between two nodes. A node's CP capabilities are encoded in the CP capabilities (X'12C1') GDS variable.
In SNA, one of the parallel sessions between two control points, using LU 6.2 protocols and a mode name of CPSVCMG, on which network services requests and replies are exchanged. Each CP of a given pair has one contention-winner session and one contention-loser session with the other.
See code page global identifier.
See characters per inch.
See control point management services.
See control point management services unit.
See command processing program.
See command processor parameter list.
See characters per second.
See compressed-pattern storage.
See control point server.
A pair of LU 6.2 sessions, between the control points in dependent-LU-requester (DLUR) and dependent-LU-server (DLUS) nodes, that carry the flows of SSCP services, which are encapsulated in APPN formats.
See central processing unit.
The maximum percentage of CPU resources that can be consumed by work executing in a specified service class, regardless of relinquished CPU resources becoming available. This percentage is allocated to each LPAR or physical host where the DB2 database manager is running.
- The amount of time a program is running in the CPU or is being serviced by the operating system. Does not include time associated with the program's I/O or time in which other processes preempt the program's use of the CPU.
- The processor time used by a job. See also duration.
See commercial processing workload.
See Common Queue Server.
See catalog recovery area.
Someone, usually with malicious intent, who tries to circumvent or subvert system protection mechanisms. See also hacker.
To search for information across various web pages on the Internet or on an intranet. See also crawler.
A software program that retrieves documents from data sources and gathers information that can be used to create search indexes. See also crawl.
A set of sources that match specified patterns, such as database names, file system paths, domain names, IP addresses, and Uniform Resource Locators (URLs), that a crawler reads from to retrieve items for indexing.
See conditional restart control record.
- The date that a data set was read if it was created before DFSMSrmm was in use. The create date is updated each time a data set is replaced and not extended.
- In DFSMSrmm, the date that a data set is written to tape.
- The date that volumes and other resources are defined to DFSMSrmm or the date specified on the command as the create date.
created temporary table
A table whose definition is persistent and shared between sessions but whose data is deleted when the session in which the table was instantiated ends. The data in the table is available only within the session in which the table was instantiated. The table is defined by using the SQL statement CREATE GLOBAL TEMPORARY TABLE. See also base table, declared temporary table, temporary table.
creation time stamp (CTS)
In the Distributed Computing Environment (DCE), an attribute of all Cell Directory Service clearinghouses, directories, soft links, child pointers, and object entries that contains a unique value reflecting the date and time the name was created.
See creator identifier.
- Information acquired during authentication that describes a user, group associations, or other security-related identity attributes, and that is used to perform services such as authorization, auditing, or delegation. For example, a user ID and password are credentials that allow access to network and system resources.
- In the Java Authentication and Authorization Service (JAAS) framework, a subject class that owns security-related attributes. These attributes can contain information used to authenticate the subject to new services.
- A set of information that grants a user or process certain access rights.
The component of Web Express Logon that handles requests for host credentials, which have been previously authenticated by a network security layer. See also network security layer.
In Fibre Channel technology, the number of receive buffers allocated to a transmitting node port (N_port), node loop port (NL_port), or fabric port (F_port). The credit is the maximum number of outstanding frames that can be transmitted by that N_port, NL_port, or F_port without causing a buffer overrun condition at the receiver.
A collection of resources that work together to perform a specific type of work. For example, an OHLINE crew might consist of 3 people and a bucket truck (a tool) that work together to build or repair overhead electrical power lines.
See Carbon Responsibility Factor.
See cluster resource group.
See cluster resource group manager.
See cluster-ready hardware server.
- A series of activities that determines the earliest completion of a project; the critical path changes as activities or tasks are completed ahead or behind the original schedule estimates.
- The processing path that takes the longest time to complete of all parallel paths in a process instance, where each path considered begins at a start node or an input to the process and ends at a terminate node.
critical situation (crit sit, CritSit)
A customer complaint where the customer!/s business operations are seriously impacted or there could be irreparable damage to IBM!/s relationship with that customer. In general, a critsit is used when the IBM Technical Support process is perceived to have failed (including Duty Manager escalations).
See critical situation.
See critical situation.
See critical situation.
See certificate revocation list.
Pertaining to control or resources involving more than one domain. See also same-domain.
- In Cryptographic Support, a type of key-encrypting key used to encrypt a data-encrypting key that is being sent across a data line or being stored in a file.
- In SNA, a pair of cryptographic keys that are used by a system services control point (SSCP) during the initiation of cross-domain LU-LU sessions that use session-level cryptography. The keys are used to encipher the session cryptography key that is sent to another SSCP and to decipher the session cryptography key that is received from the other SSCP.
cross-domain key table
In Cryptographic Support, a table in the system-supplied physical file QACRKTBL in library QUSRSYS used to store all key-encrypting keys other than the host master key and its variants. Each record of the file contains the name of the key, its use, and its value. The three types of uses are sending, receiving, and personal identification numbers (PINs).
- A subarea link connecting two subareas that are in different domains.
- A link physically connecting two domains.
The process of migrating an existing product installation to a new version by installing the product on a new server, transferring data to the new installation, and converting the data to the new version.
See distributed query.
cross-site mirroring (XSM)
A function of i5/OS High Available Switchable Resources, Option 41, that provides geographic mirroring and the services to switch over or automatically cause a failover to a secondary copy, potentially at another location, in the event of an outage at the primary location.
cross-site request forgery (CSRF)
An attack on a website by which an intruder, posing as an authorized user, send malicious commands from a browser to a website. Cross-site request forgery can be used to access and change sensitive data.
cross-system extended services (XES)
A set of services with which multiple instances of an application or subsystem, running on different systems in a sysplex environment, can implement high-performance, high-availability data sharing by using a coupling facility.
See cross tabulation.
See configuration report program.
See change request.
See change request description.
See configuration report server.
See cathode ray tube.
See customer-replaceable unit.
This acronym represents categories that can be used both in the definition of product requirements and in the assessment of product quality. Broken into two parts, the first part represents operational categories: capability, reliability, usability, performance, installability, compatibility. The second part represents developmental categories: supportability, testability, maintainability, portability, localizability. See also FURPS.
- See key.
- A parameter that determines a cryptographic transformation between plaintext and ciphertext.
In SNA products, an LU-LU session in which a function management data (FMD) request can be enciphered before it is transmitted, and then deciphered after it is received. See also clear session, required cryptographic session, selective cryptographic session.
The IBM licensed program that provides support for the encryption and decryption of data, according to the Data Encryption Algorithm, and for the management of cryptographic keys and personal identification numbers (PINs).
- Protecting information by transforming it (encrypting it) into an unreadable format, called ciphertext. Only those who possess a secret key can decipher (or decrypt) the message into plaintext.
- The transformation of data to conceal its information content and to prevent its unauthorized use or undetected modification.
cryptography application programming interface (CAPI)
An application programming interface that provides services to enable developers to secure applications using cryptography. It is a set of dynamically-linked libraries that provides an abstraction layer which isolates programmers from the code used to encrypt the data.
cryptography verification request
A request unit that is sent by the primary logical unit (PLU) to the secondary logical unit (SLU) as part of cryptographic session establishment. The request unit allows the SLU to verify that the PLU is using the correct session cryptography key and initialization vector (IV).
See cursor stability.
A leading provider of product testing and certification services for products sold in the U.S., Canada and around the world. See also Canadian Standards Association.
See connection status block.
See central site control facility.
See CICS system definition data set.
See control section.
See consolidated software inventory.
See common symmetric key.
See Common Service Layer.
See Common Service Layer client.
The process of installing only Cluster Systems Management (CSM) on the nodes, as opposed to a full installation, which involves installing both CSM and the operating system on the nodes.
See Computer Science Network.
See Customer Support Online.
See cross-site request forgery.
See Cascading Style Sheets positioning.
See channel-to-channel adapter.
See clustered trivial database.
See computer-telephony integration.
See complex text language.
See controller description.
See component trace.
See Common User Access.
A multidimensional representation of data needed for online analytical processing, multidimensional reporting, or multidimensional planning applications. See also D-cube.
See call user data.
See control-unit initiated reconfiguration.
Sorting of words or strings as a unit, rather than as individual characters. Cultural (or lexical) sort is the type used to order words in dictionaries, glossaries, indexes, and so on. See also sorting.
cumulative PTF package
Media containing the program temporary fixes (PTFs) for i5/OS that have been accumulated from the start of the current release. PTFs requiring special handling are not included in a cumulative PTF package.
See Capacity Upgrade on Demand.
- In COBOL, the character defined by the CURRENCY SIGN clause in the SPECIAL-NAMES paragraph. If no CURRENCY SIGN clause is present in a COBOL source program, the currency symbol is identical to the currency sign.
- A character such as the dollar sign ($) used to identify monetary values.
For an Ada-language compilation unit, the state where none of that unit's supporters has been recompiled since the unit itself was compiled. This implies that all of the supporters exist, since the Ada language requires this in order for the program to be compiled. Currency implies that all supporters of a unit were compiled in the correct order, as defined by Ada language rules.
In an advanced order, the set of charges a customer incurs for order items that can be shipped at once. See also total charge.
current connect group
In RACF, during a terminal session or batch job, the group with which a user is associated for access checking purposes. On MVS, if a user does not specify the current connect group on the LOGON command or batch JOB statement, the current connect group is the user's default group. On CICS, users cannot specify a group other than their default group. If list-of-groups processing is in effect, users are associated with all the groups to which they are connected. See also default group.
See working directory.
- In the make command, the file that the make command is working with at a given moment. The make command replaces the $* macro with the name of the current file.
- The file being edited. If multiple windows are in use, the current file is the file containing the cursor.
See local host.
current interrupted job
When a job is interrupted by pressing the Attn key, another job can be started from a command line. This job can also be interrupted by pressing the Attn key again. The current interrupted job is the most recently interrupted. The job name for the current interrupted job is displayed at the top of the Inquiry Options menu.
The library that is specified to be the first user library searched for objects requested by a user. The name for the current library can be specified on the Sign-On display or in a user profile. When you specify an object name (such as the name of a file or program) on a command, but do not specify a library name, the system searches the libraries in the system part of the library list, then searches the current library before searching the user part of the library list. The current library is also the library that the system uses when you create a new object, if you do not specify a library name.
A state that increases the concurrency of read-only data access by allowing the committed version of a row to be processed when a lock is encountered instead of requiring the query to wait for the lock to be released. See also optimistic locking, pessimistic locking.
See SQL path.
- In an IMS database, the place immediately preceding the segment occurrence that IMS retrieves if the user immediately issues an unqualified retrieval call.
- In computer graphics, the position, in user coordinates, that becomes the starting point for the next graphics routine, if that routine does not explicitly specify a starting point.
- The record pointed to by the current line pointer.
- In COBOL, the record that is available in the record area associated with the file.
- For TSO users, the security label specified when the user logged on, or (if no security label was specified) the default security label in the user's user profile.
- The security label that RACF uses in RACF authorization checking if the SECLABEL class is active.
- For batch jobs on MVS, the security label specified in the SECLABEL parameter of the JOB statement, or (if no security label was specified) the default security label in the user profile associated with the job.
In CDE, the session saved by Session Manager when you log off. At the next login, unless you specify otherwise, this session automatically opens, enabling work to continue where you left off. See also home session.
current SQL ID
In DB2 for z/OS, an identifier that, at a single point in time, holds the privileges that are exercised when certain dynamic SQL statements run. The current SQL ID can be a primary authorization ID or a secondary authorization ID.
In DB2 for i5/OS, the state of a connection when it is the one used for SQL statements that are executed. See also dormant state.
current working directory
See working directory.
A series of courses that together satisfy a specific set of learning objectives. A student can enroll in a curriculum rather than each of the individual courses it contains, and progress can be tracked over the curriculum as a whole.
- In Tivoli Distributed Monitoring, a monitor that is implemented as a script or program by the Tivoli administrator.?
- During a HALDB online reorganization, a marker in a database partition that separates the copied database records from the records that have not been copied. The cursor indicates the progress of the reorganization through the HALDB partition.
- A displayed symbol that acts as a marker to help the user locate a point in text, in a system command, or in storage. Cursors mark file position and access information in distributed data management (DDM) architecture.
- A movable symbol on a display, often a blinking or solid block of light, that identifies a choice to select, indicates where user interaction with the keyboard will appear, or indicates a position of interest on the display surface.
- In SQL, an identifier associated with a group of rows or with a collection.
- A named control structure used by an application program to point to and select a row of data from a set. See also asensitive cursor, cursor data type, cursor sensitivity, dynamic cursor, insensitive cursor, parameterized cursor, sensitive cursor, static cursor.
- A reference to an element at a specific position in a data structure.
For high availability large database (HALDB) online reorganization, the status in the recovery control data set (RECON data set) that alerts Database Recovery Control (DBRC) that an online reorganization has started.
cursor data type
A data type whose values represent references to cursors. A cursor data type can either be the built-in data type CURSOR or a user-defined data type based on the built-in CURSOR data type. See also cursor, cursor variable, strongly typed cursor data type, user-defined type, weakly typed cursor data type.
The degree to which database updates made by the same application process or another application process are incorporated in the data returned by FETCH statements for a cursor after the database updates. See also asensitive cursor, cursor, insensitive cursor, sensitive cursor.
- An isolation level under which a query in a transaction is prevented from reading any changes made to rows by statements in other transactions until the changes have been committed. A transaction using CS with an updatable cursor prevents statements in other transactions from changing and possibly reading a row until the cursor has moved from that row. See also isolation level, read stability, repeatable read, uncommitted read.
- An isolation level that locks any row accessed by a transaction of an application while the cursor is positioned on the row. The lock remains in effect until the next row is fetched or the transaction is terminated. If any data is changed in a row, the lock is held until the change is committed to the database.
A global variable, local variable, or parameter of a cursor data type. See also cursor data type.
See smoothness of curve.
See control interval update sequence number.
- In JSP programming, an action described in a portable manner by a tag library descriptor and a collection of Java classes and imported into a JSP page by a taglib directive. (Sun)
- An action for a file or project that is created using the Menu Manager preferences pages and is displayed on pop-up menus.
- A Java or non-Java process definition that you can define as a part of a health policy action plan.
- A unique, configurable attribute that is defined by the glossary administrator for a category or term in your business glossary.
- User-defined characteristics of an asset, for example: support contact and confidential.
Custom-built Product Delivery Option (CBPDO)
A software delivery package consisting of uninstalled products and unintegrated service. Installation requires the use of SMP/E. CBPDO is one of the two entitled methods for installing z/OS; the other method is ServerPac.
A selected combination of products tailored by a vendor to the needs of one or more users. Each custom configuration is identified by unique serial number, which is incorporated into the custom configuration.
- A person or organization, internal or external to the producing organization, who takes financial responsibility for the system. In a large system this may not be the end user. The customer is the ultimate recipient of the developed product and its artifacts. See also stakeholder.
- A user of an online store.
- A group or organization that is associated with one or more applications. A customer can be an external organization that accesses a data center or an internal department within a company.
Customer Analysis Tool (CAT)
A web-based application designed to help Software Sales, Marketing, ibm.com (Teleweb) and other IBM users who require a thorough understanding of software licenses and opportunities in the z/Series market segment.
An online site where users may obtain information regarding products and conduct business transactions regarding these products. WebSphere Commerce supports the following customer-facing stores: hub store, direct sales store, and extended site store.
A type of member group consisting of a collection of customers who have been grouped by a site administrator because they share similar shopping patterns or characteristics. See also site administrator.
customer-managed use control
A level of password use control in which the customer manages compliance with the terms of the software product acquisition. See also password use control level, vendor-managed use control.
customer-replaceable unit (CRU)
An assembly or part that a customer can replace. See also field-replaceable unit.
All information about the customer that is held by the seller. This can include basic demographics, order history, or operational data such as the user ID and shipping address. Customer segments are dynamic; marketing managers define the criteria for including a customer in a customer segment. Customer segments can be the targets of campaigns.
customer service representative (CSR)
A defined role in WebSphere Commerce that manages customer inquiries. The customer service representative also processes customer registration, orders, and returns. See also customer service supervisor, script.
customer service supervisor
A defined role in WebSphere Commerce that has access to all customer service tasks. The customer service supervisor manages customer inquiries (such as customer registration, orders, returns, and auctions) and has authority to complete tasks that cannot be accessed by a customer service representative, such as approving system-denied returns records, and contacting customers regarding payment exceptions (such as credit card authorization failures). See also customer service representative.
customer setup (CSU)
The unpacking, setup, and checkout of machines by customer personnel, according to a sequence of instructions provided by the manufacturers, without the use of tools or the assistance of trained service personnel.
Customer Support Online (CSOL)
A service, accessible online and by phone, that offers administrative support to customers for all questions related to contracts, invoices, statements of accounts, deliveries, etc. See also Invoice Online, Order Status Online, Statement Online.
See finder method.
- The ability to change how objects on a personal computer look and work. For example, a user can tailor what objects are in a work area by creating, moving, or copying objects to the work area.
- The modification of a portal page or portlet by a user. WebSphere Portal enables a user to customize a portal page by modifying the page layout and by selecting which portlets will display per device. See also personalization.
- The process of describing optional changes to defaults of a software program that is already installed on the system and configured so that it can be used. See also configuration.
- The process of designing a data processing installation or network to meet the requirements of particular users. Activities can include installing additional products, taking advantage of new software features and functions, and enabling or disabling optional features.
customization definition document (CDD)
An XML document that describes the layout of an instance (that is, its organizational units (OUs) and servers, and which service bundles are assigned to each server-OU combination). The Customization Definition Program (CDP) uses a CDD to determine which deployment data to produce for an instance.
Customization Definition Program (CDP)
A program used to generate deployment data based on information contained in a customization definition document (CDD). It also generates reports that describe the resulting instance.
customization time data
See build time data.
- To describe to the system the devices, programs, users, and user defaults for a particular data processing system or network.
- To describe optional preferences or changes to defaults in a software program that is already installed and configured.
Customized Devices Object Class
A representation within the Object Data Manager (ODM) of each device instance as distinguished by a unique logical name. The Customized Devices Object Class contains basic information about the device such as device status and how to access the information contained in other object classes.
customized installation package (CIP)
A customized installation image that can include one or more maintenance packages, a configuration archive file from a stand-alone server profile, one or more enterprise archive files, scripts, and other files that help customize the resulting installation. See also integrated installation package.
A user-defined property, as opposed to a system-defined property. The user can assign custom properties to a class. See also property.
A resource that is created by a console administrator and can be customized and deleted. See also resource type.
A C language or C++ language program that provides data manipulation and local or remote data stream, database, or other services beyond those provided by the state table interface. Custom servers provide an interface between DirectTalk and business applications, functions, or other processes to give callers access to business information and voice processing functions such as speech recognition. See also 3270 server.
In Analysis Studio, a named object which can include filter rules, calculations, and sort rules. Custom sets can define a set of members that is different from any set originally defined in the cube model. See also predefined set, set.
An extension to the JavaServer Pages (JSP) language that performs a specialized task. Custom tags are typically distributed in the form of a tag library, which also contains the Java classes that implement the tags.
custom text analysis engine
A text analysis engine that is created using the Unstructured Information Management Architecture (UIMA) SDK and can be added to the set of standard enterprise search text analysis engines. See also analysis engine, enterprise search base annotator.
custom user registry
A customer-implemented user registry that implements the UserRegistry Java interface. This registry type can support virtually any kind of accounts repository from a relational database and can provide flexibility in adapting product security to various environments.
A view that uses actions such as summarize, cloak, exclude, and apex to limit access to information in a cube to members of a given user class. User class views are replaced by custom views associated with the users, groups, or roles in a configured namespace.
A volume in count-key-data (CKD) format that is not a standard volume, which means that it does not necessarily present the same number of cylinders and capacity to its assigned logical control unit as provided by one of the standard S/390 volume types. See also count key data, interleave, standard volume.
Custom Wire Format (CWF)
The physical representation of a message in the MRM domain that is composed of a number of fixed format data structures or elements, which are not separated by delimiter characters.
See control unit terminal mode.
Paper that is cut into uniform-size sheets before being loaded into the printer. See also continuous forms.
In fibre-channel technology, a switching technique that allows a routing decision to be made and acted upon as soon as the destination address of a frame is received. See also route.
A channel of voice data which has been passed through echo cancellation algorithms. The channel provides echo-cancelled voice data which can then be used by the engine in a recognition attempt.
See cost variance.
See cost variance at completion.
See common VTOC access facility.
See CICS-value data area.
See Concurrent Versions System.
See case weight.
See common work area.
See Custom Wire Format.
See coupled extended remote copy.
- A set of tables that can be ordered so that each table is a descendent of the one before it, and the first table is a descendent of the last table. A self-referencing table is a cycle with a single member. See also referential cycle.
- To end a management collection object that is currently in use and to open a new object for storing future collections. This process prevents collection objects from becoming too large.
- A path of a graph that begins and ends on the same node.
- The time elapsed during one cycle of the processor. Cycle time varies from one type of processor to another.
- The minimum time interval between starts of successive read/write cycles of a storage device.
- The time required for a process instance in a process simulation run to finish processing its inputs. Cycle time includes idle time when an activity in the process is waiting for a resource to become available.
A period that represents a constant number of days. There are two types of cyclic periods: Work-days-only cyclic period, where only the work days are counted when calculating the number of days in the period and All-days cyclic period, where all days are counted.
- On a magnetic disk or in an assembly of disks, the set of all tracks that can be accessed by all the magnetic heads of a comb in a given position, without repositioning the access mechanism.
- A unit of storage on a count-key-data (CKD) device with a fixed number of tracks.
See Complete Zip Auditing and Rating.