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IBM Terminology

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�i5/OS: The IBM licensed program that is used as the principal operating system for System i products. The predecessor to i5/OS was Operating System/400 (OS/400). See also iSeries, Operating System/400.
�i5/OS NetServer: See i5/OS Support for Windows Network Neighborhood.
�i5/OS Support for Windows Network Neighborhood: A function of the i5/OS operating system that enables Microsoft Windows clients on a network to access System i shared directory paths and shared output queues without any unique software. The clients use the file and print sharing functions that are included in their Windows operating systems.
�i5/OS user profile: A user profile that is used to sign on to i5/OS. i5/OS user profiles are created with the CRTUSRPRF (Create User Profile) CL command.
�IAB: See Internet Architecture Board.
�IAM: See interapplication messaging.
�IAMS: See Incoming Application Message Store.
�IAR: See instruction address register.
�IARS: See Initial Access Response Seconds.
�I-beam pointer: A pointer that indicates that the pointer is over an area that can be edited, for example, an entry field.
�IBG: See interblock gap.
�IBM content partner (content partner): IBM partner that provides syndicated content for portals.
�IBM Data Server Client (Data Server Client): An application development product that allows applications to be developed on a client workstation to access remote database servers, including DB2 family databases, through the DB2 Connect products.
�IBM data server client (data server client): A client that determines the location of a remote database, manages the transmission of requests to the database server, and returns the results.
�IBM data server driver copy (data server driver copy): A single instance of an installation of IBM Data Server Driver for ODBC, CLI, and .NET.
�IBM Data Server Provider for .NET (Data Server Provider for .NET): An extension of the ADO.NET interface that allows .NET applications to access a DB2 or Informix Dynamic Server (IDS) database through a secure connection, run commands, and retrieve results.
�IBM-defined exit: A location in source code at which IBM has added an exit point; an installation routine can receive control from the operating system at this IBM-defined exit. See also installation-defined exit.
�IBM Developer Kit for Java (Developer Kit for Java): The IBM licensed program that is a compatible implementation of the Sun Microsystems, Inc. Java Technology.
�IBM Director Agent (Director Agent): A component of IBM Director software. When IBM Director Agent is installed on a system, the system can be managed by IBM Director. IBM Director Agent transfers data to the management server using several network protocols, including TCP/IP, NetBIOS, and IPX.
�IBM Director Console (Director Console): A component of IBM Director software. When installed on a system, it provides a graphical user interface (GUI) for accessing IBM Director Server. IBM Director Console transfers data to and from the management server using TCP/IP.
�IBM Director Core Services (Director Core Services): A facility with which IBM Director communicates with and administers a level-2 managed system. IBM Director Core Services includes the service location protocol (SLP) instrumentation, the IBM Director Agent SLP service type, and Common Information Model (CIM).
�IBM Director database (Director database): The database that contains the data stored by IBM Director Server.
�IBM Director environment (Director environment): The complex, heterogeneous environment managed by IBM Director. It includes systems, BladeCenter chassis, software, and SNMP devices.
�IBM Director extension (Director extension): A tool that extends the functionality of IBM Director. Some of the IBM Director extensions are Capacity Manager, ServeRAID Manager, Remote Deployment Manager, and Software Distribution.
�IBM Director Server (Director Server): The main component of IBM Director software. When installed on the management server, it provides basic functions such as discovery of the managed systems, persistent storage of configuration and management data, an inventory database, event listening, security and authentication, management console support, and administrative tasks.
�IBM Director Server service (Director Server service): A service that runs automatically on the management server, and provides the server engine and application logic for IBM Director.
�IBM Director service account (Director service account): The Windows operating-system account associated with the IBM Director Server service.
�IBM Information Server console: The unified and integrated graphical interface to the installed components and capabilities of IBM Information Server.
�IBM PC double-byte encoding scheme (PC double-byte encoding scheme): The graphic characters have the following range: The first byte is in the range 81 to FC. The second byte is in the range 40 to 7E and 80 to FC. No other 16-bit patterns are valid as graphic characters. The space character is always assigned to code point 8140.
�IBM PC single-byte encoding scheme (PC single-byte encoding scheme): An extension of the ISO 646 version 7-bit structure to an 8-bit structure. The IBM PC single-byte structure has a valid code point range for 00 to FF. The graphic characters have the following range: The first byte is in the range 81 to FC. The second byte is in the range X'40' to X'7E' and X'80' to X'FC'. No other 16-bit patterns are valid as graphic characters.
�IBM product engineering (PE): The third-level of IBM service support. Product engineering is composed of IBM engineers who have experience in supporting a product or who are knowledgeable about the product.
�IBM Runtime Environment for Java (Runtime Environment for Java): A subset of the IBM Developer Kit for the Java Platform, that contains the core executables and files that constitute the standard Java platform. The IBM Runtime Environment includes the Java virtual machine, core classes and supporting files.
�IBM service representative: An IBM representative who performs maintenance and repair services for IBM products or systems.
�IBM Support Assistant (ISA, Support Assistant): A software serviceability workbench that helps to reduce support costs and improve customer satisfaction by increasing the customers' ability to resolve software challenges on their own.
�IBM systems engineer (SE): An IBM service representative who performs maintenance services for IBM software in the field.
�IBM Tivoli Directory Server for i5/OS (Directory Server): A function of the i5/OS operating system that enables the system to run a Lightweight Directory Access Protocol (LDAP) server.
�IBM Toolbox for Java (Toolbox for Java): A library of Java classes that gives Java-program access to System i data and resources.
�IBM TotalStorage Enterprise Storage Server (ESS, TotalStorage Enterprise Storage Server): A member of the Seascape product family of storage servers and attached storage devices (disk drive modules). The ESS provides for high-performance, fault-tolerant storage and management of enterprise data, providing access through multiple concurrent operating systems and communication protocols. High performance is provided by multiple symmetrical multiprocessors, integrated caching, RAID support for the disk drive modules, and disk access through a high-speed serial storage architecture (SSA) interface.
�IBM trade-up: A license for a programs that replaces a qualifying IBM Programs that is obtained for a reduced charge. See also competitive trade-up.
�IBM use report: A report available in the IBM Tivoli License Management (ITLM) Program. The report measures daily program use for most IBM programs eligible for sub-capacity terms.
�IBM Virtual Shared Disk (Virtual Shared Disk): The subsystem that allows application programs running on different nodes to access a logical volume as if it were local to each node. The logical volume is local to only one of the nodes (the server node).
�IBM WebSphere InterChange Server Access (WebSphere InterChange Server Access): A collection of WebSphere business integration components, including Server Access Interface and data handlers, that enable the WebSphere business integration system to receive calls from external processes.
�ICCF: See Interactive Computing and Control Facility.
�ICE: See interval control element.
�ICF: (1) See intersystem communications function.; (2) See integrated catalog facility.
�ICF file: A device file that allows a program on one system to communicate with a program on another system. There can be one or more sessions with the same or different communications devices at the same time.
�ICKDSF: See Device Support Facilities.
�ICL: (1) See integrated cartridge loader.; (2) See intercluster link.
�ICMP: See Internet Control Message Protocol.
�ICMP code: A number that is used in conjunction with an Internet Control Message Protocol (ICMP) type to provide a more detailed description of the ICMP message.
�ICMP redirect message: An out-of-bound message that is designed to inform a host of a more optimal route through a network, but possibly used maliciously for attacks that redirect traffic to a specific system.
�ICMP scan: A check that determines if a host responds to Internet Control Message Protocol requests, such as a ping.
�ICMP service: A user-defined combination of an Internet Control Message Protocol (ICMP) type and an ICMP code.
�ICMP type: A number that describes the information that is contained in the Internet Control Message Protocol (ICMP) message.
�icon: A graphical representation of a choice or object for the user to select. An icon can represent something a user wants to work with, such as a document, file, application, or user-created object or list. An icon can also represent an action a user wants to do.
�icons view: A standard contents view in which each object contained in a list object is displayed as an icon.
�ICP: See interval control program.
�ICS: See Information and Control System.
�ICU: See International Components for Unicode.
�ID: (1) See Identification Division.; (2) See identifier.
�IDCAMS: An IBM program that is used to process access method services commands. It can be invoked as a job or jobstep, from a TSO terminal or from within a user's application program.
�ID data structure: A data structure that holds an individual result from a statistical API function.
�IDDU: See interactive data definition utility.
�IDE: See integrated development environment.
�iDEN: See integrated digital enhanced network.
�identification: (1) The security service that enables each user of a computer system to be identified uniquely. A common mechanism for implementing this service is to associate a user ID with each user.; (2) In computer security, the process that allows a system to recognize an entity by means of personal, equipment, or organizational characteristics or codes.
�Identification Division (ID): One of the four main parts of a COBOL program. In addition to identifying the source program and the object program, this part may also describe the author's name, the location where written, and the date written.
�identification label: In PSF, a protected set of resources (fonts, overlays, and page segments) that are used to label PSF output for security purposes. See also security label.
�identification record: A type of load module record that contains information about the language translator, user data, and modifications.
�identified user: A concurrent user (a user who is signed on to a program simultaneously with another user) of the i5/OS licensed program who is known and reported on by the license management function of i5/OS.
�identifier (ID): (1) A sequence of bits or characters that identifies a user, program, device, or system to another user, program, device, or system. See also data name.; (2) In the C language, a sequence of letters, digits, and underscores used to identify a data object or function.; (3) In COBOL, a data name that is unique or is made unique by the correct combination of qualifiers, subscripts, or indexes.; (4) In the 3270 terminal services development tool, a field on a screen definition that uniquely identifies the state of the screen. Users can choose which fields will be identifiers when creating recognition profiles.; (5) The name of an item in a program written in the Java language.; (6) One or more characters used to identify or name a data element and possibly to indicate certain properties of that data element.
�identity: The data that represents a person and that is stored in one or more repositories.
�identity assertion: The invocation credential that is asserted to the downstream server. This credential can be set as the originating client identity, the server identity, or another specified identity, depending on the RunAs mode for the enterprise bean.
�identity column: A column that provides a way for the DB2 database manager to automatically generate a numeric value for each row that is inserted into a table. Identity columns are defined with the AS IDENTITY clause. A table can have no more than one identity column.
�identity management: A set of enterprise search APIs that control access to secure data and enable users to search a collection without being required to specify a user ID and password for each repository in the collection.
�identity policy: The policy that defines the user ID to be used when creating an account for a user.
�identity relationship: The association between business objects or other data on a one-to-one basis. Each participant in the relationship is associated with a business object that has a value (or combination of values) that uniquely identifies the object. Identity relationships typically transform the key attributes of business objects, such as ID numbers and product codes.
�identity token: A token that contains the invocation credential identity, which with the client authentication token are required by the receiving server to accept the asserted identity.
�ideographic: Pertaining to 2-byte characters consisting of pictograms, symbolic characters, and other types of symbols.
�idiom: A low-level pattern specific to a programming language. An idiom describes how to implement particular aspects of components or the relationships between them using the features of the given language. Idioms are also called an implementation pattern. Idioms span design and implementation.
�I-direction: See inline direction.
�IDL: See Interface Definition Language.
�IDLC: See ISDN data link control.
�IDL compiler: In the Distributed Computing Environment (DCE) Remote Procedure Call (RPC), the compiler associated with Interface Definition Language (IDL) that processes an RPC interface definition and an optional attribute configuration file (ACF) to generate client stubs, header files, and auxiliary files.
�idle agent: A database agent that currently does not have a database connection or an application association. See also active agent, inactive agent.
�idle character: A character transmitted on a telecommunication line that is not intended to represent data and does not result in an output operation at the accepting terminal.
�idle connection: A connection between two systems where no data is transferred.
�idling: The status of a pair of virtual disks (VDisks) that have a defined copy relationship for which no copy activity has yet been started.
�IDL mangled: Pertaining to Java names that are altered or "mangled" so that they can be mapped to equivalent IDL names. When a Java name contains characters that are not permitted in IDL names, these characters are removed and the remaining characters are used to form the IDL name.
�IDML: See International Development Markup Language.
�IDoc domain: The message domain that includes all messages that are exchanged between the broker and SAP R3 clients across the MQSeries link for R/3. Messages in this domain are processed by the IDoc parser. See also BLOB domain, JMS domain, MRM domain, XML domain.
�IDoc parser: A program that interprets a bit stream or tree that represents a message that belongs to the IDoc domain, and generates the corresponding tree from the bit stream on input, or bit stream from the tree on output.
�IDP: See interchange document profile.
�IDRC: See improved data-recording capability.
�ID resolution: The generation of reference numbers prior to loading XML elements into a database. ID resolution is used to uniquely identify data within the database system.
�IDS: See intrusion detection system.
�IDU: See interface data unit.
�IEEE: See Institute of Electrical and Electronics Engineers.
�IESG: See Internet Engineering Steering Group.
�IETF: See Internet Engineering Task Force.
�IFCID: See instrumentation facility component identifier.
�IFI: See instrumentation facility interface.
�IFI call: An invocation of the instrumentation facility interface (IFI) by means of one of its defined functions.
�IFP: See IMS Fast Path.
�I frame: See information frame.
�if statement: A conditional statement that specifies a condition to be tested and the action to be taken if the condition is satisfied.
�if-then rule: A rule that determines what action to perform based on a condition that evaluates to true or false. See also rule set.
�IGC: Abbreviation used in commands and keywords to represent double-byte character set functions.
�ignorable white space: Any white space characters in an XQuery expression that are not significant to the expression results.
�IGP: See Interior Gateway Protocol.
�IGS: See interchange group separator.
�IIOP: See Internet Inter-ORB Protocol.
�IIOP connection: A TCP/IP connection to an IIOP server. Requests enter the server via inbound IIOP connections and flow to other servers via outbound IIOP connections.
�IKE: See Internet Key Exchange.
�iKeyman: A tool supplied with the Gateway for maintaining digital certificates for SSLight and JSSE.
�ILAN: See internal local area network.
�ILC: (1) See interlanguage call.; (2) See interlanguage communication.
�ILC application: An interlanguage communication (ILC) application that includes two or more of the following programs or routines: a C routine, a COBOL program, a Fortran program, a PL/I routine, and an Assembler program.
�ILDS: See indirect list data set.
�ILE: (1) See Integrated Language Environment.; (2) See indirect list entry.
�ILE C: See Integrated Language Environment C.
�ILE COBOL: See Integrated Language Environment COBOL.
�ILE RPG: See Integrated Language Environment RPG.
�ILK: See indirect list entry key.
�illegal configuration: A configuration that will not operate and will generate an error code to indicate the cause of the problem.
�ill-placed file: A file assigned to one storage pool, but having some or all of its data in a different storage pool.
�ill-replicated file: A file with contents that are not correctly replicated according to the desired setting for that file. This situation occurs in the interval between a change in the files replication settings or suspending one of its disks, and the restriping of the file.
�ILS: See isolated log sender.
�ILU: See independent logical unit.
�iLUN: See iSCSI client logical-unit number.
�IM1: A data tower of an Intelligent Printer Data Stream (IPDS) construct that represents image data.
�image: (1) An electronic representation of an original document or picture produced by a scanning device or created from software.; (2) A pattern of toned and untoned pels that form a picture.
�image area: In AFP Utilities, an area on the display where the image of an AFP resource is displayed when a user designs the resource.
�image backup: A backup of a full file system or raw logical volume as a single object.
�image block: A structure that contains the raster pattern and the instructions for placing the pattern on the page.
�image catalog: An object on the system that contains image catalog entries. Each catalog is associated with one user-specified integrated file system directory. The system-recognized identifier for the object type is *IMGCLG. Image catalogs can have the following statuses: ready, not ready.
�image catalog entry: A position (index) within an image catalog that contains information about an optical image file (byte-stream file) that is located in the image catalog directory. Examples of image catalog entry information include optical image file name, volume identifier, index position in the catalog, and a text description of the image. Image catalog entries can have the following statuses: (1) loaded, (2) mounted, (3) unloaded.
�image cell: A portion of an image that saves storage by defining only part of a raster pattern. Each image cell must also contain information that defines the placement of its raster pattern within the complete image. An image cell can be replicated to fill a defined area.
�image copy: (1) An exact reproduction of all or part of a table space. DB2 for z/OS provides utility programs to make full image copies (to copy the entire table space) or incremental image copies (to copy only those pages that were modified since the last image copy).; (2) A backup copy of a data set, used to restore the data set if necessary after a failure.
�image data: A pattern of bits with 0 and 1 values that define the pels in an image. A 1-bit is a toned pel.
�image data stream: An Advanced Function Printing data stream that represents image data.
�image mode: An access mode that establishes a one-to-one mapping of extents in the managed disk (MDisk) with the extents in the virtual disk (VDisk). See also access mode, unconfigured mode, managed space mode.
�Image Object Content Architecture (IOCA): (1) A defined data stream used to store raster image data. The images in a Mixed Object:Document Content Architecture document are stored using IOCA.; (2) An architecture that provides a collection of constructs used to interchange and present images, such as printing image data on a page, page segment, or overlay.
�image part: A part that displays a picture on a window. The picture is displayed by retrieving the contents of a picture file, such as a bit map.
�image stack: An installable software image. There are two types of images, a golden master image and a scripted OS image.
�image symbol set (ISS): In the GDDM function, a graphics symbol set in which each character is treated as a small image and is described by a rectangular array of display points. Characters in an image symbol set are always drawn in a fixed size. See also vector symbol set.
�image VDisk: A virtual disk (VDisk) in which there is a direct block-for-block translation from the managed disk (MDisk) to the VDisk.
�imaginary line: In the GDDM function, a construction line used to build a fillet. The beginning and ending points of imaginary lines are defined, but the lines themselves do not appear as part of the picture.
�IMAP: See Internet Message Access Protocol.
�IM-ASPDU: See interapplication messaging application support protocol data unit.
�imbedded blank: See embedded blank.
�imbedded text control: See embedded text control.
�IML: (1) See initial microprogram load.; (2) See initial microcode load.
�IMM: See invoke medium map.
�immediate checkpoint: The facility that writes simple checkpoint information without requiring termination of MPPs.
�immediate command: A command (such as GO, RESET, or LOGOFF) that begins processing as soon as the operator enters it, possibly preempting other ongoing processing. See also regular command.
�immediate disconnection: An option for disconnecting CICS from DBCTL, using the CDBC transaction. Immediate disconnection allows only current DL/I requests to DBCTL from this CICS system to be completed before CICS is disconnected from DBCTL. See also orderly disconnection.
�immediate index cleanup rollout: A rollout in which index cleanup is performed synchronously with the deletion of the portion of the MDC table. See also rollout.
�immediate maintenance: A method of maintaining keyed access paths for database files. This method updates the access path whenever changes are made to the database file associated with the access path. See also delayed maintenance, rebuild maintenance.
�immediate message: A message that is created when it is sent. See also predefined message.
�immediate shutdown: (1) In WebSphere MQ, a shutdown of a queue manager that does not wait for applications to disconnect. Current message queue interface (MQI) calls are allowed to complete, but new MQI calls fail after an immediate shutdown has been requested. See also controlled shutdown, preemptive shutdown.; (2) A shutdown of CICS in which tasks in progress are not allowed to complete normally. This form of shutdown is requested from the master terminal.
�immediate start: A procedure that is used with some channel-associated signaling protocols, when the address signaling is sent within 65 milliseconds of going off-hook See also delay start, wink start.
�i-mode: An Internet service for wireless devices.
�impact printer: A printer in which printing is the result of mechanically striking the printing medium. (T) See also nonimpact printer.
�imperative statement: In COBOL, a statement that either begins with an imperative verb and specifies an unconditional action to be taken or is a conditional statement that is delimited by its explicit scope terminator (delimited scope statement). An imperative statement can consist of a sequence of imperative statements.
�impersonation: A breach of communication security in which the information is passed to a person posing as the intended receiver or information is sent by a person posing as someone else. See also eavesdropping, tampering.
�IMPI: See internal microprogram instruction.
�IMPL: See initial microprogram load.
�implement: A Java programming language keyword that can be used in a class definition to specify the interfaces used by the current class.
�implementation: (1) The specification of what instance variables implement an object's state, and what procedures implement its methods.; (2) A definition of how something is constructed or computed. For example, a class is an implementation of a type, a method is an implementation of an operation.
�implementation by milestone: A conversion approach that allows for a staged conversion of an installation's data to system-managed storage on a direct access storage device (DASD), a tape, or an optical device.
�implementation-defined: Pertaining to behavior that is defined by the compiler rather than by a language standard. Programs that rely on implementation-defined behavior may behave differently when compiled with different compilers. See also undefined behavior.
�implementation function: A function written for a user-defined node or message parser. See also user-defined node, user-defined parser.
�implementation mechanism: An architectural mechanism used during the implementation process.
�implementation model: A model that contains implementation details within the scope of a project. The implementation model is a collection of components and the implementation subsystems that contain them.
�implementation pattern: See idiom.
�implementation relationship: In UML modeling, a specialized realization relationship in which the the realizing classifier must conform to the contract that the provided interface specifies. See also realizes relationship.
�implementation subsystem: A collection of components and other implementation subsystems used to structure the implementation model by dividing it into smaller parts.
�implementation view: An architectural view that describes the organization of the static software elements (code, data, and other accompanying artifacts) in the development environment in terms of both packaging, layering, and configuration management (ownership, release strategy, and so on).
�implementer name: In COBOL, an IBM-defined name that includes assignment names, computer names, function names, and language names.
�implicit: Capable of being understood from something else, though unexpressed.
�implicit allegiance: In mainframe computing, a relationship that a control unit creates between a device and a channel path when the device accepts a read or write operation. The control unit guarantees access to the channel program over the set of channel paths that it associates with the allegiance. See also contingent allegiance, reserved allegiance.
�implicit binding method: In the Distributed Computing Environment (DCE) Remote Procedure Call (RPC), the management of the binding for an RPC. A global variable in the client application holds a binding handle that the client stub passes to the RPC runtime environment.
�implicit connection: A connection that is made to a database without a user ID or password.
�implicit disconnection: In DB2 for i5/OS, the ending of the conversation between an application requester and an application server.
�implicit focal point: An assigned focal point for which the nodes to be included in its sphere of control (SOC) are defined at the SOC nodes. The management services capabilities exchange that brings a node into the sphere of control of an implicit focal point is initiated by the SOC node.
�implicit privilege: (1) A privilege that accompanies the ownership of an object, such as the privilege to drop that object. Different authority levels and database authorities can also provide implicit privileges on one or more objects. See also explicit privilege.; (2) A privilege on one or more data objects that are referenced by a package. During package execution, the user ID running the package inherits within certain boundaries the privileges of the user ID that bound the package. See also authority level.
�implicit profiling: Characterizing Web site visitors by monitoring activity. Such characteristics can be used by rules.
�implicit rebind: In DB2 Database for Linux, UNIX, and Windows, a process by which packages that are invalid are rebound automatically when an application process begins to use that package. See also rebind.
�implicit scope terminator: In COBOL, a separator period that ends the scope of any preceding unterminated statement, or a phrase of a statement that by its occurrence indicates the end of the scope of any statement contained within the preceding phrase.
�implicit time zone: In DB2 XQuery, Coordinated Universal Time (UTC), which is used when a date, time, or time zone value that does not have a time zone is used in a comparison or arithmetic operation.
�implicit trusted connection: A trusted connection that allows the acquisition of only a trusted context default role. See also trusted connection.
�implied semicolon: In REXX, an assumed semicolon at the end of each line.
�import: (1) To copy data from an external file, using formats such as PC/IXF, DEL, WSF or ASC, into database tables. See also export.; (2) To bring information from one system or program into another.; (3) In ILE binder language, a reference to an external symbol defined in another module or program. See also export.; (4) In VisualAge RPG, a function that allows an application to use data that was created by another application. It usually involves some file conversion.; (5) The operation to enter previously exported logical volumes (LVOLs) residing on a stacked volume into a virtual tape server (VTS) library. After the list of LVOLs to import is written on an import list volume and the stacked volumes are entered, the import operation is initiated.; (6) The point at which an SCA module accesses an external service, (a service outside the SCA module) as if it was local. An import defines interactions between the SCA module and the service provider. An import has a binding and one or more interfaces.; (7) A development artifact that imports a service that is external to a module. See also import file.
�import agent: A MERVA Liquidity Manager component that imports messages from MERVA queues or from DB2 interface tables to the MERVA Liquidity Manager database.
�import dependency: A stereotyped dependency in the design whose source is a design package and whose target is a different design package. This dependency allows the public contents of the target package to be referenced in the source package.
�imported logical volume: An exported logical volume (LVOL) that has undergone the import process and can be referenced as a tape volume within a virtual tape server (VTS) library. An imported LVOL originates from a stacked volume that underwent the export process.
�import file: A file created during the development process for outbound operations that contains the configuration settings for outbound processing. See also import.
�import list volume: A virtual tape server (VTS) logical volume (LVOL) containing the list of LVOLs to import. This list can contain individual logical volumes or it can contain a list of stacked volumes whose LVOLs will be imported.
�impression: (1) The transfer of an image to a sheet of paper. Multiple impressions can be printed on each side of a sheet. Printer speed is often measured in impressions per minute (ipm).; (2) In Web advertising, an ad's appearance on an accessed page. For example, if a Web page displays three ads, each ad would have one impression. Online publishers often sell ad space according to impressions. See also clickthrough rate.
�improved data-recording capability (IDRC): A form of compression used when storing data on tape. IDRC can increase the effective, cartridge, data capacity and the effective data-transfer rate.
�impulsive noise: Noise produced without cause.
�IMS: See Information Management System.
�IMS attachment facility: A DB2 for z/OS subcomponent that uses z/OS subsystem interface (SSI) protocols and cross-memory linkage to process requests from IMS to DB2 for z/OS and to coordinate resource commitment.
�IMS command: A request from a terminal or AO (automated operator) to perform a specific IMS service, such as altering system resource status or displaying specific system information.
�IMS connect: The product that runs on an MVS, OS/390, or z/OS platform and through which IMS Connector for Java communicates with IMS. IMS Connect uses OTMA to communicate with IMS. See also Open Transaction Manager Access.
�IMS control program: The IMS program that initiates and controls the major IMS facilities, such as IMS database, telecommunications, and message scheduling.
�IMS conversation: (1) A dialog between a terminal and a message processing program using IMS conversational processing facilities. See also conversational processing.; (2) In IMS Connector for Java, the dialog between a Java client program and a message processing program.
�IMS Database Manager (IMS DB): A database system that processes concurrent database calls and offers high performance for a variety of applications, ranging from those with moderate volumes to extremely high volumes and those with simple data structures to complex data structures.
�IMS DataPropagator: A product that enables data to be replicated between IMS and DB2 databases.
�IMS DB: See IMS Database Manager.
�IMS Fast Path (IFP): A type of program designed to operate with expedited message handling in a Fast Path region.
�IMS Fast Path region: An online environment in which message-driven programs and DEDB online utilities operate.
�IMS generic resource name: The name by which IMS systems in a generic resource group are known to VTAM.
�IMSID: The 4-byte subsystem identification used by a given IMS job. For the shared-queues and data-sharing environment, each IMSID in the group must be unique; in other cases, each IMSID might not have to be unique.
�IMS instance: An active, unique IMS system in an IMSplex.
�IMS Java: A Java library that allows JDBC access to IMS databases from JMP or JBP applications, WebSphere Application Server for z/OS EJBs, CICS JCICS applications, and DB2 UDB for z/OS stored procedures.
�IMS JDBC driver: A driver that provides a connection to the IMS database, which enables users to access and change the database by using SQL queries.
�IMS monitor: An optional facility that records the activity within the IMS control region and dependent regions.
�IMSplex: One or more IMSs that work together as a unit. Typically these IMSs share resources, run in a Parallel Sysplex environment, and include a CSL. See also Multiple Systems Coupling.
�IMSplex component: An entity (typically running in its own address space) that manages resources, operations, or facilitates communications between other IMS-defined entities. Examples of IMSplex components are IMS subsystems (DB/DC, DBCTL, DCCTL), the Resource Manager, the Operations Manager, and the Structured Call Interface. A DLIBATCH or DBBBATCH region is considered a IMSplex component even though it does not interact with the Common Service Layer managers.
�IMSplex member: Any IMS-defined entity in an IMSplex that typically runs in its own address space and is managed by the IMS Common Service Layer.
�IMS Resource Lock Manager (IRLM): An IMS global lock manager that resides in its own address space. IRLM is required for block-level database sharing, either under DBCTL control or in an IMS data sharing environment.
�IMS subsystem: See IMS system.
�IMS system: The IMS control region and its associated separate address spaces (DL/I and DBRC) and dependent regions.
�IMS system log: Logically, a single log made up of on-line data sets (OLDSs) and write-ahead data sets.
�IMS TM: See IMS Transaction Manager.
�IMS transaction: A specific set of input data that triggers the execution of a specific process or job. A transaction is a message destined for an IMS application program.
�IMS transaction code: A 1- to 8-character alphanumeric code that invokes an IMS message processing program.
�IMS Transaction Manager (IMS TM): A data communication system that provides high-volume, high-performance, high-capacity, low-cost transaction processing for both IMS DB and DB2 databases.
�IMS/VS: See Information Management System/Virtual Storage.
�IN: See intelligent network.
�in-abort: A status of a unit of recovery that occurs when DB2 for z/OS fails after a unit of recovery begins to be rolled back but before the process is completed. DB2 for z/OS continues to back out the changes when the process restarts. See also in-commit.
�inaccessible: Pertaining to an object for which the client does not possess a valid designator or handle.
�inactive agent: A database agent with connection or application information that is waiting to be reused to complete a transaction within the database. See also idle agent, active agent.
�inactive configuration: A configuration contained in a source control data set (SCDS). An inactive configuration is not currently being used by the storage management subsystem (SMS).
�inactive connection: A broken connection between two systems where no data can be transferred.
�inactive data: A copy of active data, such as vital records or a backup copy of a data set, that is written once and is not expected to be used again. Inactive data is never changed. However, it can be deleted, superseded by another copy, or moved to an optical library or shelf. See also active data.
�inactive library: A library not currently in use by the online IMS system in a system using online change. This library might be at a different level than the current or active libraries.
�inactive record: An inactive subfile record or any record format that is not currently shown on a display. See also active record.
�inactive subfile record: A subfile record that either was not added to a subfile by a write operation or was described as inactive by the data description specification (DDS) keywords SFLINZ and SFLRNA. See also active subfile record.
�inactive version: A backup version of a file for which a more recently backed-up version exists. Inactive backup versions are eligible for expiration processing according to the management class assigned to the file. See also active version, backup version.
�in-band: Pertaining to signals that are carried within the telephony voice channel. See also out-of-band.
�in-band communication
�in-band discovery: The process of discovering SAN data, including topology and attribute data, through the Fibre Channel data paths. See also out-of-band discovery.
�inboard: Pertaining to a device that is built into the main unit.
�inbound: In FEPI and CICS, pertaining to data received by a program from elsewhere.
�inbound authentication: The configuration that determines the type of accepted authentication for inbound requests.
�inbound call center: A centralized office of a company that answers incoming telephone calls from customers.
�inbound channel: A channel that receives messages from another queue manager.
�inbound document: See source document.
�inbound DTE attribute: In OSI, an attribute specified by the local node to regulate inbound connection requests from an adjacent node to the local node over an X.25 subnetwork. The inbound DTE attributes are accept calls and reverse charging.
�inbound event: A declaration that a monitoring context or KPI context will accept a specific event at run time.
�inbound intrusion: An intrusion that originates from a remote system and targets a port and IP address on the local system.
�inbound map: A map that transforms a generic business object into an application-specific business object.
�inbound message: A message that WebSphere Commerce receives from an external or back-end application. Inbound messages are used to integrate WebSphere Commerce with other systems.
�inbound port: A type of port that takes a message that is received at an endpoint listener and passes it to the service integration bus for forwarding to the appropriate inbound service.
�inbound processing: The process by which changes to business information in an enterprise information system (EIS) are detected, processed, and delivered to a run time by a JCA Adapter. An adapter may detect EIS changes by polling an event table or by using an event listener.
�inbound service: The external interface for a service that is provided by your own organization and hosted in a location that is directly available through the service destination.
�inbound transport: Network ports in which a server listens for incoming requests.
�in-built format: See built-in format.
�inception: The phase of the software development life cycle in which the idea for a product is proposed, researched, and evaluated.
�inches per second (ips): A measure of tape drive speed and performance.
�incident: (1) The occurrence of a series of sensor events that exceed a certain severity threshold within a specific amount of time (which is configurable).; (2) An event that is not part of the standard operation of a service and causes or may cause a disruption to or a reduction in the quality of services and customer productivity.
�incident group: A collection of two or more incidents with matching criteria, which are combinations of destination host, source host, category, or customer identifier.
�incident management: The process of managing unexpected operational events with the primary objective of returning service to customers as quickly as possible.
�include data set: In aggregate backup and recovery processing, a data set in the selection-data-set include list. This data set is processed using aggregate backup.
�include directive: A preprocessor directive that causes the preprocessor to replace the statement with the contents of a specified file.
�include file: A text file that contains declarations that are used by a group of functions, programs, or users.
�include list: A required list in the selection data set that identifies the include data sets that are to be processed using aggregate backup.
�include relationship: In UML modeling, a relationship in which one use case (the base use case) includes the functionality of another use case (the inclusion use case). See also use case.
�include statement: A computer language preprocessor statement that directs the processor to retrieve a specific file that contains instructions and data the program may need.
�inclusive reference: A call from a segment in storage to an external symbol in a segment in the same path. An inclusive reference does not cause overlay of the calling segment.
�inclusive segment: A type of segment that can be in virtual storage simultaneously. See also exclusive segment.
�Incoming Application Message Store (IAMS): A message store, implemented as the database table DNF_IAMS, in which messages received from remote applications (OSN messages) are stored.
�incoming message: A message containing a credit received from another bank, an in-house message containing a credit or debit, a debit or credit confirmation, or a control message.
�in-commit: A status of a unit of recovery that occurs when DB2 for z/OS fails after beginning its two-phase commit processing. When DB2 for z/OS is restarted, this status indicates that changes made to data are consistent. See also in-abort.
�incomplete class declaration: A C++ class declaration that does not define any members of a class. Until a class is fully declared or defined, you can use the class name only where the size of the class is not required.
�incomplete type: A type that has no value or meaning when it is first declared. There are three incomplete types: void, arrays of unknown size and structures, and unions of unspecified content.
�inconsistent: In a remote copy relationship, pertaining to a secondary virtual disk (VDisk) that is being synchronized with the primary VDisk.
�incore request queue: Another name for the request queue to emphasize that the request queue is held in memory instead of on a DASD.
�increment: The difference (delta) between two releases at the end of subsequent iterations.
�incremental backup: (1) The process of backing up files or directories, or copying pages in the database, that are new or changed since the last full or incremental backup. See also cumulative backup.; (2) A copy of all database data that has changed since the most recent successful full backup operation. An incremental backup is also known as a cumulative backup image because each incremental backup includes the contents of the previous incremental backup.
�incremental bind: In DB2 Database for Linux, UNIX, and Windows, a process by which SQL statements are bound during the execution of an application process, because they could not be bound during the bind process, and VALIDATE(RUN) was specified. See also static bind, automatic bind, incremental bind statement.
�incremental bind statement: In DB2 Database for Linux, UNIX, and Windows, SQL statements that are neither fully static nor fully dynamic. Like static statements, they are embedded within an application, but like dynamic statements, they are prepared during the execution of an application. See also deferred embedded SQL, dynamic SQL, incremental bind, static SQL.
�incremental build: In Eclipse, a build in which only resources that have changed since the last build are considered. See also full build.
�incremental development: An iterative development strategy in which the system is built by adding more and more functionality at each iteration. See also evolutionary development, iterative development.
�incremental save operation: In Backup, Recovery, and Media Services, a backup operation that includes only those objects in a control group that have been changed since the last backup operation or archive operation.
�independent: Pertaining to an object (row, table, or table space) that is neither a parent nor a dependent of another object.
�independent control: The process by which each processor in a complex controls its own job input, scheduling, and job output. See also centralized control.
�independent data item: In COBOL, a data item in the Working-Storage Section that has no relationship to other data items.
�independent disk pool: One or more storage units that are defined from the disk units or disk-unit subsystems that make up addressable disk storage. An independent disk pool contains objects, the directories that contain the objects, and other object attributes such as authorization ownership attributes.
�independent logical unit (ILU): (1) A unique connection to an application program that is able to activate an LU-to-LU session without assistance from a system services control point (SSCP). An independent logical unit can be used as either a primary logical unit (PLU) or a secondary logical unit (SLU), and can have one or more active LU-toLU sessions at a time. Currently, only an LU 6.2 can be an independent LU. See also dependent logical unit.; (2) A logical unit (LU) that can both send and receive a BIND command, and which supports single, parallel, and multiple sessions.
�independent mode: A means of isolating a processor for testing purposes. A processor so designated will only process jobs that are both routed to it and are themselves designated to execute on a processor in independent mode.
�independent software vendor (ISV): A non-IBM software vendor.
�independent workstation: See programmable workstation.
�index: (1) A set of pointers that is logically ordered by the values of a key. Indexes provide quick access to data and can enforce uniqueness of the key values for the rows in the table.; (2) A computer storage position or register, the contents of which identify a particular element in a table.; (3) In VisualAge RPG, the identifier of an entry in a part, such as a list box or a combination box.; (4) A table that contains key values or referrences for locating information in an indexed file.; (5) In the WebSphere MQ Administration Interface (MQAI), a means of referencing data items.; (6) A relative number (1-64) of an image catalog entry within an image catalog.; (7) A list of entries arranged alphabetically to provide fast access to information.; (8) To add or edit the attribute values that identify a specific item or object so that it can be retrieved later.
�index class: See item type.
�index class subset: In earlier Content Manager, a view of an index class that an application uses to store, retrieve, and display folders and objects.
�index class view: In earlier Content Manager, the term used in the APIs for index class subset.
�index-controlled partitioning: A type of partitioning in which partition boundaries for a partitioned table are controlled by values that are specified on the CREATE INDEX statement. Partition limits are saved in the LIMITKEY column of the SYSIBM.SYSINDEXPART catalog table.
�index data consistency: A condition in which all of the data rows in a database are valid data rows, all of the data rows are referenced in the index, there are no index keys referencing nonexistent data rows, and the column values in each index key match the corresponding column values in the referenced data rows. If the database does not maintain index data consistency, the database is corrupt.
�index data item: In COBOL, a data item in which the contents of an index can be stored without conversion to subscript form.
�indexed data name: In COBOL, a data name identifier that is subscripted with one or more index names.
�indexed organization: In COBOL, the file structure that identifies each record by the value of one or more keys within that record.
�indexed segment: In a database, a segment that is located by an index and termed an index target segment.
�indexed sequential access method (ISAM): An access method that can be used for either direct or sequential update or retrieval. An index is stored on DASD with the data set.
�indexed VTOC: A volume table of contents (VTOC) with an index that contains a list of data set names and free space information, which allows data sets to be located more efficiently.
�index entry: A catalog entry that describes the index component of a key-sequenced cluster, alternate index, or catalog. An index entry contains the index component's attributes, passwords and protection attributes; allocation and extent information; and statistics.
�indexing: In ACIF, a process of matching reference points within a file and creating structured field tags within the MO:DCA-P document and the separate index object file.
�indexing segment: The segment in an index database that contains a pointer to a segment containing data (the indexed segment), and termed an index pointer segment.
�index key: The set of columns in a table that is used to determine the order of index entries.
�index level: A set of index records that order and give the location either of records in the next lower level or of control intervals in the data set that it controls.
�index manager: The component of the database manager that controls creating, removing, maintaining, and accessing the indexes defined in a database.
�index matching: A task that the query complier performs to determine whether the query compiler can use an index to evaluate an SQL, SQL/XML, or XQUERY query. To use an index over XML data, the data types specified in the query search condition must match indexed data types, and the query return set must be more restrictive than the set of the nodes that are indexed.
�index name: In COBOL, a user-defined word that names an index.
�index object file: A file created by ACIF that contains Index Element (IEL) structured fields, which identify the location of the tagged groups in the AFP file. The indexing tags are contained in the Tagged Logical Element (TLE) structured fields.
�index over XML data: In DB2 databases, an index that provides efficient access to nodes within an XML document by providing index keys that are based on XML patterns.
�index partition: A VSAM data set that is contained within a partitioning index space.
�index pointer segment: In a secondary index, the segment that contains the data and pointers used to index the index target segments.
�index queue: (1) A list of requests to either add or remove a document to or from text search services.; (2) A list of requests for main and delta index builds to be processed.
�index record: In the Virtual Storage Access Method (VSAM), a collection of index entries that are retrieved and stored as a group. See also data record.
�index sargable predicate: SQL predicate that is applied to index entries in index leaf pages to reduce the number of index entries that qualify the SQL request.
�index scan: The accessing of an index by the database manager to narrow the set of qualifying rows before accessing a base table, to order output, or to retrieve requested column data directly when all of the requested data is in the index.
�index search: A searchable part of the online information. Using index search, application programmers can create and write their own index search topics for their applications. The system-recognized identifier for the object type is *SCHIDX.
�index set: In the Virtual Storage Access Method (VSAM), the set of index levels that are above the sequence set. An index is comprised of the index set and the sequence set. See also sequence set.
�index source segment: In a database, the segment containing the data from which the indexing segment is built. It can be the same as the indexed segment or one of its dependents.
�index space: A page set that is used to store the entries of one index.
�index specification: In a federated system, a set of metadata about a data source object index that the query optimizer uses to expedite the processing of distributed requests. When a nickname is created for a data source object, the federated server gathers index information about that object and stores the information in the global catalog.
�index target segment: In a database, the segment pointed to by a secondary index entry, that is, from an index pointer segment.
�indication: (1) In OSI, a service primitive issued by a service provider to call a procedure by a service user.; (2) A problem on an endpoint that involves one or more resources. Indications are consolidated into events on the endpoint that is being monitored. See also event.; (3) An object representation of an event.
�indicator: (1) A 1-character or 2-character code that is used by a program to test a field or record or to tell when certain operations are to be performed.; (2) An internal switch used by a program to remember when a certain event occurs and what to do when that event occurs.; (3) In the RPG licensed program, a 2-character code that is used as a logical variable or statement label.
�indicator collection: See indication.
�indicator column: A 4-byte value that is stored in a base table in place of an LOB column.
�indicator variable: A variable used to represent the null value in an application program. If the value for a selected column is null, a negative value is placed in the indicator variable.
�indirect argument passing: A method of passing arguments in which a pointer to the argument value is included in the parameter list. See also direct argument passing.
�indirect block: A block containing pointers to other blocks.
�indirect destination: In CICS, a type of transient data destination that points to another destination within the destination control table, rather than directly to a queue.
�indirection: (1) In the C and C++ languages, the application of the unary operator * to a pointer to access the object to which the pointer points.; (2) A mechanism for connecting objects by storing, in one object, a reference to another object. See also dereference.
�indirection class: See reference class.
�indirect list data set (ILDS): In a HALDB, an IMS system index data set. The ILDS is a repository for the indirect pointers used for PHDAM and PHIDAM databases, which include one ILDS per partition.
�indirect list entry (ILE): In a HALDB, an entry in an indirect list data set.
�indirect list entry key (ILK): In a HALDB, a unique token that is assigned to a segment in PHDAM and PHIDAM databases when the segment is created. Eight bytes in length and stored in the prefix of the segment, the ILK uniquely identifies every segment in PHDAM and PHIDAM databases.
�indirect managed resource: A managed resource that is enclosed within a hosting domain, which identifies the managed resource and provides the services for locating the managed resource. An indirect managed resource can be located using its hosting domain without being registered independently. See also direct managed resource, hosting domain.
�indirect pointer: In a HALDB, a pointer stored in the indirect list data set and used to eliminate the need to update pointers throughout other database records when a single partition is reorganized.
�indirect speech recognition: Identification of words from spoken input read from a file. See also direct speech recognition.
�individual address: In communications, an address associated with a particular station on the network. See also group address.
�individual privilege: A privilege that is granted on a single data object.
�individual resource: A single resource that can be uniquely identified, such as a person or computer. Individual resources are used when a specific resource must be allocated to a task. For example, the Mary Smith resource must perform the Approve Payment task.
�Indo-European language: A language that was spoken in the area from Northern India to the Western fringes of Europe and that can be traced back to a single, original proto-language, which is called Proto-Indo-European (PIE). Some of the Indo-European subgroups are Germanic, Italic (Romance), Slavonic, Celtic, Hellenic, and Baltic. The approach to lexical analysis is very similar for all Indo-European languages.
�indoubt: The status of a unit of recovery that occurs when the database manager fails after it finishes its phase 1 commit processing and before it starts phase 2. At emergency restart, the status of the unit of recovery is indoubt until the commit coordinator indicates to the database manager whether the unit of recovery is to be committed or rolled back.
�in-doubt: In CICS, the state at a particular point in a distributed UOW for which a two-phase commit syncpoint is in progress. See also subordinate.
�indoubt resolution: The process of resolving the status of an indoubt logical unit of work to either the committed or the rollback state.
�indoubt transaction: A transaction in which one phase of a two-phase commit completes successfully but the system fails before a subsequent phase can complete.
�in-doubt unit of recovery: The status of a unit of recovery for which a syncpoint has been requested but not yet confirmed.
�indoubt unit of work (indoubt UOW): A transaction or database update that has been prepared for commit, but is not yet committed. If a failure occurs before the in-doubt unit of work is committed, IMS must resolve all the work whose status is in doubt.
�indoubt UOW: See indoubt unit of work.
�in-doubt window: The period between the sending of a syncpoint request to a remote system and the receiving of a reply. During this period, the local system does not know whether or not the remote system has committed its changes. If processing fails in the in-doubt window, recovery processing must resolve the status of any work that is in-doubt.
�in-doubt window resolution utility program: A utility you can use to help determine the resources that have been changed by transactions using ISC or MRO for tasks that are considered to have been in-doubt after a CICS region failure.
�induction variable: A controlling variable of a loop.
�InetD: Internet Daemon. It provides TCP/IP communication services in the OS/390 USS environment.
�INFDS: See file information data structure.
�infinity: (1) A name referring to an indefinitely great number.; (2) In decimal floating-point operations, a signed value that is mathematically greater in magnitude than any other decimal floating-point number. See also decimal floating-point number.
�inflection: The modification of a word to convey grammatical information, typically by means of an affix. Common language markings include gender, tense, number or person.
�inflight: (1) The state of a resource or unit of recovery that has not yet completed the prepare phase of the commit process.; (2) A status of a unit of recovery that occurs when DB2 for z/OS fails before its unit of recovery completes phase 1 of the commit process. When DB2 for z/OS is restarted, it backs out the updates of any units of recovery that have inflight status.
�inflight task: (1) A task that is in progress when a CICS system failure or immediate shutdown occurs.; (2) During emergency restart, a task that caused records to be written to the system log, but for which no syncpoint record has been found for the current LUW. This task was interrupted before the LUW completed.
�Info/Analysis: A VSE/ESA diagnostic tool that can manage and process system dumps.
�infopop: A small window that displays context-sensitive help for a particular UI element and links to related online help topics.
�Infoprint Server: An element of z/OS that supports printing on local printers and remote printers in a TCP/IP or SNA network. With Infoprint Server, users can submit print requests from remote workstations in a TCP/IP network, from z/OS UNIX System Services applications, from batch applications, from VTAM applications (such as CICS and IMS), and from SAP R/3.
�informational constraint: A rule used by the SQL compiler to improve query performance without requiring additional data verification. See also constraint.
�informational event: In OSI, an event that is a part of normal operation but that may be of interest to an observer. Information events are logged but do not generate a message to the operator.
�informational message: (1) A message that provides information about the system and is not the result of an error condition. This message does not require a response.; (2) In Q replication and event publishing, a message about the status of the Q Capture program, a Q subscription, or an XML publication.
�information analysis: The process of analyzing the structure and content of enterprise data and validating actual data content against business rules.
�information analysis review: The process of evaluating data analysis results in which you accept or reject inferences made during analysis.
�Information and Control System (ICS): A system provided by the German Federal Bank (Deutsche Bundesbank) to handle requests for information about RTGSplus accounts.
�information architect: A person skilled in the practice of information architecture who leads the design of the information system.
�information area: A part of a window in which information about the object or choice that the cursor is on is displayed. The information area can also contain a message about the normal completion of a process.
�information category: IBM-defined grouping of online books into a bookshelf. The books in the bookshelf can be accessed using the InfoSeeker function on the system or by workstations using the IBM Library Reader licensed program or the BookManager licensed program.
�information center: A collection of information that provides support for users of one or more products, can be launched separately from the product, and includes a list of topics for navigation and a search engine.
�information display: A display that presents information to a user, such as the status of the system, but that rarely requests a response.
�information display panel: The panel that supports the CICSPlex SM window environment. It consists of a control area and a display area. CICSPlex SM views are displayed in windows within the display area of this panel.
�information display parameter: A CICSPlex SM user profile option that defines the initial screen configuration, how frequently the screen will be updated by ASU, and how a window will wait for command processing to complete before timing out.
�information element: In ISDN, the messages that are exchanged over the D-channel between the system and ISDN. For example, when a call is set up, a message is sent to the network containing several information elements, one of which is the number of the remote system. Other information elements may be present.
�information frame (I frame): (1) In communications, a transmission frame that is sequentially numbered and used to transmit data.; (2) In video compression, a frame that has been compressed independently of any other frames.
�Information Management System (IMS): Any of several system environments available with a database manager and transaction processing that are capable of managing complex databases and terminal networks.
�Information Management System/Virtual Storage (IMS/VS): A database/data communication (DB/DC) system that can manage complex databases and networks.
�information mining: The automated process of extracting key information from text (summarization), finding predominant themes in a collection of documents (categorization), and searching for relevant documents using powerful and flexible queries.
�Information Presentation Facility (IPF): A tool used to create online help on a programmable workstation. This tool is used by the application programmer and the information author.
�Information Presentation Facility file (IPF file): The source file in which the application help is stored.
�information road map: An overview of a set of information resources, along with guidance on how to navigate through that information. For example, an information roadmap can provide the different starting points for different types of users that they can use to navigate through the different pieces of information to learn about the product or about specific tasks.
�information services enablement: A capability of IBM Information Server that provides the ability to design and deploy information services.
�information system: A system that consists of people, machines, voice communications, data communications, and methods organized to accomplish specified operations on data that represent information. Information systems support the running of the customer's business, but do not necessarily make up the customer's business.
�Information/System (INFO/SYS): A consolidated collection of IBM technical data of interest to data processing personnel responsible for planning, installing, and tuning IBM systems and subsystems.
�Information Technology Infrastructure Library (ITIL): A series of documents, created by the Office of Government Commerce in United Kingdom, that are used to help implement a framework for IT Service Management (ITSM). This framework defines how to organize the system and network management departments within specific organizations.
�information unit (IU): A set of information as defined by either upper-level process protocol definition or upper-level protocol mapping.
�INFO/SYS: See Information/System.
�infrared technology (IR): A technology that uses infrared radiation for wireless transmission between computer devices, as well as many handheld remotes for TVs and video and stereo equipment. Infrared transmission requires an unobstructed line of sight between transmitter and receiver.
�inherit: To copy resources or attributes from a parent to a child.
�inheritance: An object-oriented programming technique in which existing classes are used as a basis for creating other classes. Through inheritance, more specific elements incorporate the structure and behavior of more general elements.
�inheritance resolution: The process of using the span attribute, the precedence attribute, or both to determine which policies at ancestor nodes apply to a specific target node.
�inheriting: The process of combining the configuration data from a preference node with the configuration data from the parent of that preference node. See also coalescing, preference node.
�inhibited: In VTAM, pertaining to a logical unit (LU) that has indicated to its system services control point (SSCP) that it is temporarily not ready to establish LU-LU sessions. An initiate request for a session with an inhibited LU will be rejected by the SSCP. The LU can separately indicate whether this applies to its ability to act as a primary logical unit (PLU) or a secondary logical unit (SLU). See also disabled, enabled.
�in-house message: A message, created manually or by an in-house application, that introduces a credit or debit payment to MERVA Liquidity Manager and thereby updates the balance of the clearing channel account.
�Initial Access Response Seconds (IARS): A parameter specified in the definition of a storage management subsystem (SMS) storage class indicating the desired response time to locate, mount, and prepare a removable storage medium for data transfer.
�initial CDD: A customization definition document (CDD) to which placeholders have not yet been added.
�initial chaining value: In Cryptographic Support, an 8-byte, pseudo-random number used to start a cipher block chaining operation.
�initial context: Starting point in a namespace.
�initial data: A type of inbound data that arrives when a new session is bound. This is commonly called a "good morning" message.
�initial heap: A heap that is controlled by the HEAP run-time option and designated by a heap_id of 0.
�initial heap segment: The first heap segment. A heap consists of the initial heap segment and zero or more additional segments or increments.
�initialization: (1) Actions performed by the CICS system to construct the environment in the CICS region to enable CICS applications to be run. The stage of the XRF process when the active or the alternate CICS system is started, signs on to the control data set, and begins to issue its surveillance signal.; (2) The process that reads the initialization statements and creates the tables and control blocks used throughout the JES3 program.
�initialization data set: A group of statements that are used when the system is initialized.
�initialization file: (1) An OSI Communications Subsystem file that contains a set of commands that activate OSI Communications Subsystem resources each time OSI Communications Subsystem is started.; (2) For DB2 ODBC applications, a file containing values that can be set to adjust the performance of the database manager.
�initialization fullselect: The first fullselect in a recursive common table expression that gets the direct children of the initial value from the source table.
�initialization input data set: A data set used by WebSphere MQ for z/OS when it starts up.
�initialization parameter: An installation-specified parameter that is when the system is initialized.
�initialization point: A user-defined constant or variable used to initialize the attributes of an object.
�initialization stall: In CICS, a wait that occurs during initialization when a CICS system appears to be running normally but is not actually progressing through the various stages of initialization.
�initialization statement: An installation-specified statement that is used when the system is initialized.
�initialization vector: A binary string that is used by some block cipher modes in an exclusive-OR (XOR) operation with the first block of data. It is used to help hide any patterns that might appear in the first block of ciphertext and, therefore, makes various cryptographic attacks more difficult.
�initialize: (1) To set the addresses, switches, or the contents of storage to zero, or to the starting value set by the manufacturer.; (2) In programming languages, to set the starting value of a data object.; (3) To prepare a system, device, or program for operation; for example, to initialize a diskette.
�initializer: An expression used to initialize data objects. In the C++ language, there are three types of initializers: an expression followed by an assignment operator initializes fundamental data type objects or class objects that have copy constructors; an expression enclosed in braces ( { } ) initializes aggregates; and a parenthesized expression list initializes base classes and members using constructors
�initializing: A status condition during which a server of the entire cluster or storage array is set up for the first time.
�initial menu: The menu that is specified in the user profile to be the first menu displayed after a user signs on.
�initial microcode load (IML): The loading of microcode from a storage medium into memory.
�initial microprogram load (IML, IMPL): The action of loading microprograms into computer storage.
�initial program: (1) A user-profile program that runs when the user signs on and after the command processor program QCMD is started. QCMD calls the first program.; (2) In COBOL, a program that is placed into an initial state every time the program is called in a run unit.
�initial program load (IPL): (1) The process that loads the system programs from the system auxiliary storage, checks the system hardware, and prepares the system for user operations.; (2) The process of loading the operating system and other basic software into main storage.
�initial reference: A well-known reference associated with an identifier.
�initial stack segment: The first stack segment. A stack consists of the initial stack segment and zero or more additional segments or increments.
�initial state: In COBOL, the state of a program when it is first called in a run unit.
�initial thread: The thread that is started automatically by the system when a job or process is started. See also secondary thread.
�initiating task: The job management task that controls the selection of a job and the preparation of the steps of that job for execution.
�initiation queue: A local queue on which the queue manager puts trigger messages.
�initiation request: The name of the first process in a collaborative workflow cycle.
�initiative: A task developed to achieve objectives or close the gap between performance and targets. Initiatives are associated with individual objectives and often known as projects, actions, or activities. See also objective.
�initiator: (1) The role of a node using the two-phase commit protocol when its local transaction program issues a commit operation that begins the two-phase commit flows. The initiator is the root node of a transaction program network. See also responder.; (2) In OSI Communications Subsystem, the application entity that starts an application association.; (3) The part of an operating system that reads and processes control statements from the system input device.; (4) The system component that originates an I/O command over an I/O bus or network. I/O adapters and network interface cards are typical initiators. See also target.; (5) In Small Computer System Interface (SCSI) technology, the part of a host computer that communicates with its attached targets. See also SCSI device.
�inline: (1) Pertaining to spooled input data that is read into a job by a reader.; (2) In Content Manager, the property of an object that is online and in a drive, but has no active mounts.; (3) To replace a function call with a copy of the function's code during compilation.
�inline backup: The process of copying a specific data set to a migration-level-1 volume from a batch environment. Inline backup allows users to back up data sets in the middle of a job.
�inline copy: A copy that is produced by the LOAD or REORG utility. The data set that the inline copy produces is logically equivalent to a full image copy that is produced by running the COPY utility with read-only access.
�inline data file: A file created by a Data (//DATA) command that is included as part of a job when the job is read from an input device or a database file. The file is deleted when the job ends.
�inline direction (I, I-direction): The direction in which successive characters are added to a line of text.
�inline function: A function whose actual code replaces a function call. A function that is both declared and defined in a class definition is an example of an inline function. Another example is one which you explicitly declared inline by using the keyword inline. Both member and non-member functions can be inlined.
�inline resource: A resource contained in a print file or a print data set.
�inline schema: An XML schema in a Web Service Definition Language file (.wsdl).
�inline SQL PL: A subset of SQL procedural language that can be used in SQL functions, triggers, and dynamic compound statements. See also SQL procedural language.
�inline task: In the human task editor, a unit of work that is defined within an implementation of a business process. See also human task, stand-alone task.
�inlining: The process of replacing a function call with a copy of the function's code during compilation.
�inner join: The result of a join operation that includes only the matched rows of both tables that are being joined. See also outer join, join.
�i-node: The internal structure that describes the individual files in the UNIX file system. An i-node contains the node, type, owner, and location of a file.
�i-node number: A number specifying a particular i-node file in the file system.
�inoperative package: A package that cannot be used because one or more user-defined functions or procedures on which the package depends were dropped. See also invalid package.
�inoperative trigger: A trigger that depends on an object that has been dropped or made inoperative or on a privilege that has been revoked.
�inoperative view: A view that is not usable because a privilege on an underlying table is revoked; a table, alias, or function is dropped; the superview becomes inoperative; or another view on which the view is dependent is either dropped or becomes inoperative.
�in-order delivery (IOD): In fibre-channel technology, a parameter that, when set, guarantees that frames are either delivered in order or dropped.
�in-place conversion: In DFSMSdss, the process of bringing a volume and the data sets it contains under the control of the storage management subsystem (SMS) without data movement.
�input: (1) Data entered for processing or storage.; (2) An entry point through which an element is notified that it can start, typically because an upstream element, on which it depends, has completed. If the element has all of its required input, then it will start.; (3) An artifact used by a process. See also static artifact.
�input activity: The origin of the process that is the source of the invocation data of the entire process.
�input branch: The area of a decision, fork, join, or merge that contains the inputs.
�input criteria: Number and types of inputs required to start a task or process.
�input data: Data provided to the computer for further processing. See also output data.
�input event: An atomic event that can be sent to an activity by its parent, or from outside the process. It tells the activity why it has been activated. See also system event.
�input field: (1) A field specified in a display file or database file that is reserved for information supplied by a user. See also output field.; (2) An area in a presentation space into which the program accepts input.
�input file: A file that has been opened in order to allow records to be read.
�input message: (1) Any valid command, transaction, or message switch.; (2) A message that is input into the SWIFT network. An input message has an input header.
�input method: A component that converts key strokes into text input that could not otherwise be typed directly, such as characters that are not native to your operating system. For example, the input method component can be used to type Japanese text on an English keyboard.
�input mode: (1) In COBOL, the state of a file after running an OPEN statement, with the INPUT phrase specified for that file, and before running a CLOSE statement, without the REEL or UNIT phrase specified for that file.; (2) In MFS, the way in which input fields from certain devices are defined by the user to be scanned by MFS. See also record mode, stream mode.
�input node: (1) A message flow node that represents a source of messages for a message flow or subflow. See also output node.; (2) The point where a service message from a source enters the request flow.
�input/output (I/O): Pertaining to a device, process, channel, or communication path involved in data input, data output, or both.
�input/output adapter (I/O adapter, IOA): (1) A functional unit or a part of an I/O controller that connects devices to an I/O processor.; (2) For devices, the electrical circuits on a logic card that connect one device to another.; (3) A circuit board containing logic and internal software that bridges an internal processor or memory interconnect scheme and an external, common, standard channel or link.
�input output area input (IOAI): An I/O area that is used by the Fast Path DL/I calls that return structural information about DEDBs.
�input/output channel (I/O channel): In a data processing system, a functional unit, controlled by the processing unit, that transfers data between main storage and attached devices.
�input/output configuration data set (IOCDS): A configuration definition built by the I/O configuration program (IOCP) and stored on disk files associated with the processor controller.
�input/output configuration program (I/O configuration program, IOCP): A program that defines to a system all the available I/O devices and channel paths.
�input/output controller (I/O controller, IOC): A functional unit that combines the I/O processor and one or more I/O adapters, and directly connects and controls one or more input or output devices.
�input/output data: Data provided to the computer or data resulting from computer processing.
�input/output definition file (IODF): A linear data set (LDS) that contains I/O definition information. This information includes processor I/O definitions and operating-system I/O definitions. A single IODF can contain several processor and several operating-system I/O definitions.
�input/output file: A file opened for input and output use.
�input/output PCB (I/O PCB): Program communication block needed to issue DBCTL service requests.
�input/output processor (I/O processor, IOP): A processor dedicated to controlling channels or communication links.
�input/output program communication block (I/O PCB): A TP PCB provided automatically by IMS to an application program that executes in a communication system with TM. The I/O PCB is the mechanism by which a program obtains an input message from a terminal and returns a reply to the terminal that originated the input message. See also alternate program communication block.
�input/output section: In COBOL, the section of the Environment Division that names the files and external media needed by an application program. It also provides information required for sending and handling data when the program is run.
�input/output statement: In COBOL, a statement that causes files to be processed by performing operations on individual records or on the file as a unit. The input-output statements are ACCEPT, CLOSE, DELETE, DISPLAY, OPEN, READ, REWRITE, SET (with the TO ON or TO OFF phrase), START, and WRITE.
�input parameter: (1) Data received by a program such as a prompt, 3270 script, custom server, or state table from the program that invoked it. See also local variable, system variable.; (2) A parameter of an MQI call in which you supply information when you make the call.
�input partition: In BMS, a partition holding input required by the logic of the program and nominated in the associated RECEIVE MAP command.
�input PIN-protection key: In Cryptographic Support, a key-encrypting key that encrypts a personal identification number (PIN) that is received from another location. While a PIN is being used on the system, it remains encrypted under the input PIN-protection key.

�input procedure: A set of statements that controls the release of specified records to be sorted.
�input redirection: The specification of an input source other than the standard one.
�input response node: The end point for a mediation response flow from which the service message object is sent to the source.
�input sequence number (ISN): A number assigned by a system to a message received by the system. See also output sequence number.
�input service: The function that accepts and queues all jobs that enter the JES system, except for those jobs invoked with the *CALL command.
�input service driver (ISDRVR): A dynamic service program (DSP) that reads batches of jobs from the spool data set and constructs a separate job control table (JCT) entry for each job.
�input service job: A job created by the card, tape, or disk reader dynamic service program (DSP) for each batch job written on the spool data set.
�input service processing: The process of performing the following tasks for each job: reading the input data, building the system input data set, and building control table entries.
�input specification: The means by which a programmer describes input records and their fields, adds RPG functions to an externally described file, or defines a data structure and its subfields.
�input stream: (1) A group of records submitted as a batch job that contains CL commands for one or more jobs or data from one or more inline data files.; (2) In RJE, data sent to the host system. See also output stream.; (3) A sequence of control statements and data submitted to an operating system by an input device.
�input system: In an MSC network, the system to which the input terminal is attached.
�input terminal: In an MSC network, the terminal from which a primary request originated.
�input terminal node: A primitive through which a message is received by a subflow. Each input terminal node is represented as an input terminal of the corresponding subflow node.
�input-translation formula: In an editable field, the formula that converts or translates entered information into a specified value or format.
�input-validation formula: In an editable field, the formula that verifies that the entered information meets the specified criteria.
�inquiry: A request for information in storage.
�inquiry logical terminal: A type of logical terminal that is created automatically by IMS and restricted to non-update transactions. Inquiry logical terminals are created for non-VTAM switched lines.
�inquiry message: A message that gives information and requests a reply.
�inquiry mode: An operation during which the current job running from a display station is interrupted so that other work can be done. The operator presses the Attn key to put the display station in inquiry mode.
�inquiry program: (1) A program that allows an operator to get information from a disk file.; (2) A program that runs while the system is in inquiry mode.
�INS: See Interoperable Naming Service.
�in-scope namespace: In XQuery, a property of an element node that defines a set of namespace bindings that associates namespace prefixes with URIs and defines the set of namespace prefixes that is available for interpreting QNames within the scope of the element. See also qualified name.
�in-scope schema type: The built-in data types that are specified in the World Wide Web Consortium XML Schema recommendation or the predefined data types in the namespace http://www.w3.org/2005/xpath-datatypes.
�in-scope variable: One of a set of variables that is available for reference within an XQuery expression.
�insensitive cursor: A cursor that is not sensitive to inserts, updates, or deletes that are made to the underlying rows of a result table after the result table has been materialized. See also cursor, cursor sensitivity.
�insertion order: In the WebSphere MQ Administration Interface (MQAI), the order that data items are placed into a data bag.
�insert mode: A keyboard operation that puts new text within existing text at the cursor position.
�insert rule: A condition enforced by the database manager that must be met before a row can be inserted into a table.
�insert trigger: A trigger that is activated by an insert operation on the table or view that is specified in the trigger definition. See also delete trigger, trigger, instead of trigger, update trigger, read trigger.
�inspection: A evaluation technique in which an artifact (model, document, or software) is examined by a person or group other than the originator to identify faults, violations of development standards, and other problems.
�installable file: A file or set of files that can be included in a particular software deployment. Examples include an installation package, installation files for a patch downloaded from the vendor's Web site, or a software image. See also software definition.
�installable object: An object that contains a combination of the objects to be installed and list of the objects to be installed, associated with the name of the target library, folder, or path where they must be created when the installable object is installed.
�installable service: In WebSphere MQ on UNIX systems and WebSphere MQ for Windows, additional functionality provided as independent component. The installation of each component is optional: in-house or third-party components can be used instead.
�installable unit (IU): An entity that is deployed into an IT system to create new capabilities in that IT system. An IU consists of a descriptor and one or more artifacts that need to be installed. See also aggregated installable unit, artifact, hosting environment, installable unit deployment descriptor, solution module.
�installable unit deployment descriptor (IUDD): The XML descriptor that identifies the installable units (IUs) that make up a solution and its logical targeted topologies. See also descriptor, installable unit.
�installable unit registration: The interface that supports the submission of information to the installation database.
�installation: (1) A particular computing system, including the work it does and the people who manage it, operate it, apply it to problems, service it, and use the results it produces.; (2) The process of adding a hardware or software component to a computing environment.; (3) A set of artifacts from one or more DB2 database products.
�installation database: A collective term for all the registries that are used during the installation process. These registries are the touchpoint registry, the installation unit (IU) type registry, the instance relationship registry, and one registry for each supported hosting environment.
�installation-defined exit: The location in source code at which an installation adds an exit point for an installation routine to receive control from the operating system. See also IBM-defined exit.
�installation depot: In Tivoli Kernel Services, the component that installs code from the distribution media. Component depots access files from the installation depot and push them to Tivoli Kernel Services servers. See also component depot.
�installation device: A tape or optical device [CD-ROM or a digital video disc (DVD)] that is used on a type D IPL to load Licensed Internal Code (LIC) segments into main storage. The installation device must be on the same input/output processor (IOP) as the load source. This device can be used to load LIC code from the tape or optical device onto the load source during restore or installation operations.
�installation directory: (1) In a z/OS environment, a Hierarchical File System (HFS) into which all product data is installed, and from which it is referenced and retrieved during the customization phase.; (2) A directory in which unique files for a package are stored. See also shared resource.
�installation exit: The means specifically described in an IBM software product's documentation by which an IBM software product may be modified by a customer's system programmers to change or extend the functions of the IBM software product. Such modifications consist of exit routines written to replace one or more existing modules of an IBM software product, or to add one or more modules or subroutines to an IBM software product. See also user exit.
�installation IPL: The process of loading code into main storage and preparing for system operation from an input/output hardware unit other than the system's primary load-source disk unit. This is also referred to as a type D IPL or D-mode IPL.
�installation media: The media used in the installation of software, usually CD/ROM, CD-R, or tape media provided by IBM or another supplier for the purpose of distributing software to customers. See also distribution media.
�installation package: An entity that Centralized Installation Manager (CIM) transfers from the repository and installs on the installation targets.
�installation profile: An object that can be tailored and used to control the automatic installation of a system.
�installation program: A program that prepares a software package to run on the computer. During installation, a component of the setup program is commonly copied to and left on the hard drive to allow the user to customize the program's default settings.
�installation repository (IR): The directory that contains reusable installation images and other data that is used by Tivoli Software Installation Service.
�installation target: The system on which selected installation packages are installed.
�installation topology: The physical or logical mapping product components to the computers or nodes where they are installed.
�installation verification procedure (IVP): A program or programs that are run at the end of installation of an IBM licensed program, in order to verify that the program is working correctly.
�instance: (1) See database manager instance.; (2) In object-oriented programming, an object of a particular class. See also object.; (3) In object-oriented programming, a region of storage that contains a value or group of values.; (4) An individual entity satisfying the description of a class or type.; (5) An entity to which a set of operations can be applied and that has a state that stores the effects of the operations. See also object.; (6) An individual realization of the operating system with a particular version, configuration, physical location, and identifier.; (7) A set of servers that share a common runtime database, plus their corresponding brokers and queue managers.
�instance data: (1) In object-oriented programming, state information associated with an object.; (2) A type of performance data that consists of response times that are collected every time the transaction is detected. See also hourly average data.
�instance document: An XML document that conforms to a particular schema.
�instance ID: In query management, an identifier in the communications area. An instance ID is used to identify a particular query instance being used by an application program.
�instance method: (1) A method valid for an object instance. An instance method that an object responds to is defined by the object's class or is inherited from an ancestor class. See also class method.; (2) In object-oriented programming, any method that is started with respect to an instance of a class.
�instance metric: A metric that returns the result, such as the amount of an order, from one run of the process.
�instance-owning database partition: In partitioned database environments, the database partition that has the superset of features and products within the cluster. The instance-owning database partition is identified by the host name in the first line of the db2nodes.cfg file and has the smallest database partition number (normally, 0).
�instance parameter: A configuration value or setting that is specified for a server instance.
�instance-specific information (ISI): Located within the condition token, information used by a condition handler or the condition manager to interpret and react to a specific occurrence of a condition.
�instance statistics: Statistical information that includes information about an application such as instances of different classes and their size, the packages to which the classes belong, the CPU time spent in an instance of a class, and so on. See also package statistics.
�instance UUID: In DCE Remote Procedure Call (RPC), an object Universal Unique Identifier (UUID) that is associated with a single server instance and is provided to clients to identify that instance unambiguously.
�instance variable: A variable declared for use within the method procedures of a class.
�instantiable structured type: A structured type that can be used for creating database objects. A structured type that is not instantiable cannot be used for creating database objects; however, such a type can be used to define subtypes which, in turn, can be instantiable.
�instantiate: To create or generate a particular instance or object of a data type. For example, an instance box1 of class box could be instantiated with the declaration: box box1
�instant meeting: An unscheduled Sametime meeting that can include chat, audio, audio and video, and shared data. An instant collaboration meeting can include all of the tools for sharing and communication. Instant meetings are started from Sametime Connect or from active names.
�instead of trigger: A trigger that is associated with a single view and is activated by an insert, update, or delete operation on the view and that defines how to propagate the insert, update, or delete operation on the view to the underlying tables of the view. See also delete trigger, insert trigger, trigger, update trigger, read trigger.
�Institute of Electrical and Electronics Engineers (IEEE): A professional society accredited by the American National Standards Institute (ANSI) to issue standards for the electronics industry.
�instruction: (1) A program statement that specifies an operation to be performed by the computer, along with the values or locations of operands. This statement represents the programmer's request to the processor to perform a specific operation. [OSF]; (2) In COBOL, one or more clauses, the first of which starts with a keyword that identifies the instruction. Instructions affect the flow of control, provide services to the programmer, or both.; (3) In REXX, one or more clauses that describe some course of action to be taken by the language processor. Instructions may be assignments, keyword instructions, or commands.
�instruction address register (IAR): A register in the processor that contains the address of the next instruction to be processed.
�instruction data set: In aggregate backup and recovery processing, a data set that contains instructions, commands, or any data the aggregate backup site defines as needed for aggregate recovery at the recovery site.
�instruction file: In aggregate backup and recovery processing, one of three aggregate files generated by the aggregate backup process. The instruction file contains the instruction data set.
�instruction scheduling: An optimization technique that reorders instructions in code to minimize execution time.
�instrument: (1) In application or system software, to use monitoring functions to provide performance and other information to a management system.; (2) To include code in a program in order to monitor or enhance the operation of a system or component.
�instrumentation: (1) In application or system software, the monitoring functions that provide performance information and other information to a management system, or the use of such monitoring functions.; (2) The process of including code in a program to monitor or enhance the operation of a system or component.
�instrumentation event: A way of monitoring queue manager resource definitions, performance conditions, and channel conditions in a network of WebSphere MQ systems.
�instrumentation facility component identifier (IFCID): In DB2 for z/OS, a value that names and identifies a trace record of an event. As a parameter on the START TRACE and MODIFY TRACE commands, it specifies that the corresponding event is to be traced.
�instrumentation facility interface (IFI): A programming interface that enables programs to obtain online trace data about DB2, to submit DB2 commands, and to pass data to DB2.
�insynch: In cross-site mirroring, pertaining to the mirror copy data state that indicates that the production and mirror copy have exactly the same contents.
�integer: (1) A positive or negative whole number, or zero.; (2) In DB2 for i5/OS, a data type indicating that the data is a binary number with a precision of 31 bits.; (3) In COBOL, a numeric constant or a numeric data item that does not include any digit position to the right of the assumed decimal point.
�integer constant: A decimal, octal, or hexadecimal constant. See also decimal constant.
�integer expression: An arithmetic expression with only integer type values.
�integral object: A character object, an object having an enumeration type, an object having variations of the type int, or an object that is a bit field.
�integrated cartridge loader (ICL): A feature that automatically loads tape cartridges that have been placed into a loading rack. Manual loading of single tape cartridges is also possible.
�integrated catalog facility (ICF): A component that provides integrated catalog facility catalogs. See also integrated catalog facility catalog.
�integrated catalog facility catalog: A catalog that consists of a basic catalog structure, which contains information about VSAM and non-VSAM data sets, and at least one VSAM volume data set, which contains data about VSAM data sets only. See also integrated catalog facility, VSAM volume data set.
�integrated development environment (IDE): A set of software development tools, such as source editors, compilers, and debuggers, that are accessible from a single user interface.
�integrated digital enhanced network (iDEN): A Motorola-enhanced mobile radio network technology that integrates two-way radio, telephone, text messaging, and data transmission into a single network.
�integrated fabric: The fabric created by six switches that are cabled together and are configured to handle traffic as a seamless group.
�integrated file system: A function of the i5/OS operating system that supports stream input/output and storage management in a manner that is similar to personal computer and UNIX operating systems, while providing an integrating structure over all information stored on a system.
�Integrated Language Environment (ILE): A set of constructs and interfaces that provides a common runtime environment and run-time bindable application program interfaces (APIs) for all ILE-conforming high-level languages.
�Integrated Language Environment C (ILE C): An IBM licensed program that is the C programming language available on the system. The ILE C licensed program uses the ILE model.
�Integrated Language Environment COBOL (ILE COBOL): The IBM licensed program that is the COBOL programming language available on the system, including system-specific functions.
�Integrated Language Environment RPG (ILE RPG): An IBM-licensed program that includes a set of RPG compilers to be used for commercial and business applications on System i hosts. The compilers include: System/36E RPG (RPG II), System/38 RPG (RPG III), RPG/400 (RPG III), and ILE RPG (RPG IV).
�integrated messaging: A messaging system in which more than one copy of a single message is stored, the copies being kept synchronized by the applications used to access them. See also unified messaging.
�Integrated Netfinity Server for iSeries: See Integrated xSeries Server.
�Integrated PC Server
�integrated server: A combination of hardware and software that enables i5/OS to manage storage, removable media devices, virtual Ethernet connectivity, and other attributes of a Windows or Linux server. The integrated server hardware includes the processor and memory. All of the integrated server storage is managed by i5/OS.
�Integrated Server Support: A feature of the i5/OS operating system that allows users to combine Microsoft Windows, Linux, and VMware servers with i5/OS in a single system. Integrated Server Support can help reduce the cost and complexity of x86-based servers and better manage the delivery of personal productivity applications.
�integrated services: A quality-of-service policy that uses the resource reservation setup protocol (RSVP) to provide end-to-end traffic management. In integrated services, an application requests resources from a network. The network handles the data by request.
�Integrated Services Digital Network (ISDN): An international communications standard for sending voice, video, and data over digital telephone lines.
�Integrated Services Digital Network call transfer: In DirectTalk, an application that allows you to transfer calls on Nortel DMS-100 switches using Integrated Services Digital Network two B-channel transfer, and on Nortel DMS-100 and DMS-250 switches using Nortel's proprietary Release Link Trunk (RLT) call transfer protocol.
�Integrated Services Digital Network two B-channel transfer (ISDN two B-channel transfer): A call transfer feature defined by Bellcore GR-2865-CORE specification used on Nortel and Lucent switches.
�Integrated Services Digital Network user part (ISDN-UP, ISUP): Part of the SS7 protocol supporting telephony signaling applications. The ISDN user part is defined to carry signaling information relating to digital telephones, terminals, and PABXs in customer premises.
�Integrated Solutions Console (ISC): The core technology of the IBM Autonomic Computing initiative that provides a common, consistent portal-based user interface, which is based on industry standards and component reuse. The Integrated Solutions Console can host common system administrative functions that are provided by IBM server, software, or storage products.
�integrated system management processor (ISMP): A service processor built into some xSeries servers. ISMP is the successor to the Advanced System Management (ASM) processor.
�Integrated Virtualization Manager (IVM): A browser-based management interface that is used to manage a System p server. The IVM can be used to create logical partitions, manage virtual storage, and view service information related to the server.
�Integrated xSeries Adapter (IXA): A PCI expansion card that can be installed in selected System x models and that provides a high-speed link to a System i product.
�Integrated xSeries Server (IXS): An Intel server that fits inside System i products to support larger Windows application demands.
�integration: The software development activity in which separate software components are combined into an executable whole.
�integration broker: The component in the WebSphere business integration system that integrates data among heterogeneous applications. An integration broker typically provides various services that can route data, a repository of rules that govern the integration process, connectivity to various applications, and administrative capabilities that facilitate integration.
�integration build plan: A specification of the order in which components are to be implemented and integrated in a specific iteration. This plan is usually enclosed within an iteration plan.
�integration debugger: A WebSphere Integration Developer tool that is used to visually debug local or remote business integration components, such as business processes, business object data maps, and mediation flows.
�Integration Exchange Format (IXF): A protocol for transferring tabular data among various software products.
�Integration Object: A Java bean that encapsulates an interaction with a host screen. Integration Objects are constructed from macros and can be included in Web services or HATS EJB projects.
�integration test client: A WebSphere Integration Developer tool for interactively testing modules and components.
�integrity: (1) In computer security, assurance that the information that arrives at a destination is the same as the information that was sent.; (2) The quality of data that exists as long as destruction, alteration, loss of consistency, or loss of data are prevented.
�integrity processing: The process of populating identity and generated columns, refreshing materialized query tables, propagating updates to staging tables, and performing constraints checking.
�integrity protection: The set of controls that prevents users from accessing or changing any objects on the system, including user data, except by using the system-provided interfaces that enforce authority rules.
�intelligent agent: (1) Software that monitors conditions or actions on a network node and contains logic enabling it to respond to these conditions or actions.; (2) A Java-based software component that is capable of learning certain behaviors over time through complex autonomic algorithms. Intelligent agents can have many different capabilities, from simply monitoring for certain events to more complex actions like analyzing network problems, monitoring disk space, or managing storage.
�intelligent network (IN): A telephone network that includes programmable software not resident on the switch. It allows the service provider to provide special services, such as special call-handling, that are not dependent on the capabilities of the switch.
�intelligent peripheral (IP): A voice processing system (such as DirectTalk) that provides enhanced services such as voice response, speech recognition, text-to-speech, voice messaging, and database access in an advanced intelligent network.
�intelligent peripheral interface (IPI): A standard developed by ANSI that defines the electrical, data link protocol, and functional interfaces.
�intelligent power distribution unit (iPDU): An electrical device that controls power distribution, provides circuit protection, and monitors the power and temperature of the environment.
�Intelligent Printer Data Stream (IPDS): An all-points-addressable data stream that allows users to position text, images, graphics, and bar codes at any defined point on a printed page.
�intelligent remote station support (IRSS): The IMS facility that supports the IBM System/3 and IBM System/7.
�intelligent routing: The distribution of output from the PDF subsystem in multiple ways based on values specified in a mapping program and the Print Services Facility (PSF) configuration object. The entire input spooled file or any segment of the input spooled file is electronically mailed as a PDF file, stored as a PDF stream file in the integrated file system, spooled as a PDF file, spooled as an Advanced Function Presentation (AFP) file, or any combination of those. See also mapping program, PDF subsystem.
�intent propagation: A condition handled internally by IMS by which processing intent for one segment can propagate to related segments depending on the type of processing and the kind of relationship. It determines the compatibility of scheduling processing applications in parallel or serially.
�intent scheduling: In IMS or SQL/DS, ensuring that a particular segment type of a database is accessible for potential update by only one task at a time.
�interaction: (1) A specification of how stimuli are sent between instances to perform a specific task. The interaction is defined in the context of a collaboration. See also scenario.; (2) A definition for a source document entering WebSphere Partner Gateway that explains what the target document leaving WebSphere Partner Gateway should be. It consists of the source document, target document, action, and a transformation map.
�interaction diagram: A category of diagrams that describe interactions between objects and roles. Examples include communication diagrams and sequence diagrams.
�interaction endpoint: A service requester or provider.
�interaction pattern: A communication method for sending or receiving messages in a service interaction. Examples of interaction patterns include request/reply, one-way interaction, and publish/subscribe.
�interaction style: The manner in which autonomic managers interact with managed resources to access state information or to change the state of the managed resources. The four interaction styles are retrieve-state, receive-notification, perform-operation, and call-out-request.
�interactive: (1) Pertaining to the dialog-like exchange of information between people and a computer. See also batch.; (2) Pertaining to a program or system that alternately accepts input and responds.
�Interactive Computing and Control Facility (ICCF): An IBM licensed program for use at VSE installations. Through VSE/ICCF, the services of a VSE-controlled computing system become available, on a time-sliced basis, to authorized users of terminals that are linked to the system's central processor.
�interactive data definition utility (IDDU): A function of the operating system that can be used to externally define the characteristics of data and the contents of files.
�interactive dump formatter: An enhancement to the IMS offline dump formatter that allows you to format your IMS dumps through a series of interactive menu-driven panels rather than by creating or editing a DFSFRMAT data set.
�interactive interface: A system facility which controls how different users see and work with the system by means of user profiles. When signing on, the interactive interface makes available those parts of the system authorized by the profile. The interactive interface has sets of selection-and data-entry panels through which users communicate with the system.
�interactive job: A job started for a person who signs on to a work station. In the capacity planning tool, interactive jobs cause interactive and non-interactive transactions. See also batch job.
�interactive mode: In query management, the query mode associated with a query instance that allows users to interact with the query commands while a procedure is running.
�interactive partition: An area of virtual storage for the purpose of processing a job that was submitted interactively via VSE/ICCF.
�Interactive Problem Control System (IPCS): A component of MVS and z/OS that permits online problem management, interactive problem diagnosis, online debugging for disk-resident abend dumps, problem tracking, and problem reporting.
�interactive processing: A processing method in which each operator action causes a response from the program or the system. See also batch processing.
�interactive session: A work session in which there is an exchange of communication between a 3270 application and the 3270 terminal service recorder.
�interactive source debugger (ISDB): A function of the Application Development ToolSet feature that is used for source-level debugging of programs on i5/OS.
�interactive SQL (ISQL): (1) A function of the DB2 Query Manager and SQL Development Kit for i5/OS licensed program that allows SQL statements to run dynamically instead of in batch mode. Every interactive SQL statement is read from the work station, prepared, and run dynamically.; (2) A set of SQL statements that is provided through an interface such as the Command Center or command line processor. These statements are processed as dynamic SQL statements. For example, an interactive SELECT statement can be processed dynamically using the DECLARE CURSOR, PREPARE, DESCRIBE, OPEN, FETCH, and CLOSE statements.
�Interactive Storage Management Facility (ISMF): An Interactive System Productivity Facility (ISPF) application that provides an interactive set of space management functions for users and storage administrators.
�interactive subsystem: A subsystem in which interactive jobs are processed.
�Interactive System Productivity Facility (ISPF): An IBM licensed program that serves as a full-screen editor and dialog manager. Used for writing application programs, it provides a means of generating standard screen panels and interactive dialogs between the application programmer and terminal user. See also Time Sharing Option.
�interactive terminal facility (ITF): An asynchronous communications function that allows a system to communicate with applications that can send and receive data, such as electronic mail, memos, library members, and data files.
�interactive transaction: The work done by the system when the Enter key or a function key is pressed. See also noninteractive transaction.
�interactive user profile: An area used by some IBM licensed programs to store information between successive calls of those programs (such as the file and library last used, or the setup last used).
�interactive video: Combining video and computer technology so the user's actions determine the sequence and direction the application takes.
�interactive view: In 3270 terminal services, real-time access to a host application in the 3270 terminal service recorder editor.
�interactive voice response (IVR): A computer application that communicates information and interacts with the caller via the telephone voice channel.
�interapplication messaging (IAM): A MERVA Link message exchange protocol.
�interapplication messaging application support protocol data unit (IM-ASPDU): An application message that consists of a heading and a body.
�interblock gap (IBG): (1) The space between records on a storage medium.; (2) An area or space on a data medium (tape or diskette) to indicate the end of a physical record or block.
�intercept: In a GDDM chart, a method of describing the position of one axis relative to another. For example, the horizontal axis can be specified so that it intercepts (crosses) the vertical axis at the bottom, middle, or top of the plotting area of a chart.
�intercepted query: A query that Query Patroller intercepts from another application and that can be either managed or not managed by Query Patroller. Managed queries are a subset of intercepted queries. See also managed query, held query.
�interchange: (1) The sending and receiving of data in such a manner that the content of the data is not altered during transmission. See also exchange.; (2) The exchange of information between trading partners. Also a set of documents grouped together, such as EDI documents enclosed within an EDI envelope.; (3) To import or export an image with its index from one Content Manager ImagePlus for OS/390 system to another ImagePlus system using a common interchange file or common interchange unit.
�interchange code: An accepted convention for computer character representation. An interchange code typically defines several code pages. EBCDIC and ASCII are interchange codes.
�interchange document profile (IDP): The Document Interchange Architecture object that contains information associated with each document. For example, the interchange document profile can contain authors, keywords, dates, and so on. The interchange document profile is one of many model objects that DIA has defined to keep information about the document. A profile consists of a set of subprofiles.
�interchange format: A print descriptor naming convention required to send a print descriptor from one system to another.
�interchange group separator (IGS): A character used to indicate that blanks were removed from a string of data and are to be reinserted.
�InterChange repository: See InterChange Server repository.
�InterChange Server: A multi-threaded, Java-based run-time environment that provides distributed system services and executes the WebSphere business integration software components. InterChange Server provides a comprehensive set of technical services, including system management, event management, repository services, error handling, transaction management, data transformation, and messaging.
�InterChange Server repository: A persistent data store maintained by InterChange Server consisting of configuration information and definitions of all WebSphere business integration objects (metadata). The InterChange Server database contains three types of database tables: repository, event management, and transaction.
�intercluster link (ICL): A type of intersubnetwork link (ISL) that connects two APPN subnetworks that have the same network identifier. At least one node of the pair connected by an ICL must be a border node.
�intercommunication: In CICS, a term embracing intersystem communication (ISC) and multiregion operation (MRO).
�INTERCOPE TelexBox: This telex box supports various national conventions for telex procedures and protocols.
�inter-DB2 R/W interest: A property of data in a table space, an index, or a partition that has been opened by more than one member of a data sharing group for writing by at least one of those members.
�interest item: An item that a customer has indicated for recurring or potential purchase. An interest item is stored with quantity information, but not price information. See also shopping cart.
�interface: (1) In Java, a group of methods that can be implemented by several classes, regardless of where the classes are in the class hierarchy.; (2) In object-oriented programming, an abstract model of behavior; a collection of functions or methods.; (3) A shared boundary between independent systems. An interface can be a hardware component used to link two devices, a convention that supports communication between software systems, or a method for a user to communicate with the operating system, such as a keyboard.; (4) A collection of operations that are used to specify a service of a class or a component. See also class, port type.; (5) In UML modeling, a model element that defines sets of operations that other model elements, such as classes or components, must implement.
�interface data unit (IDU): In OSI, data contained in a buffer passed between layers.
�interface definition: In DCE Remote Procedure Call (RPC), a description of an RPC interface written in the DCE Interface Definition Language (IDL).
�Interface Definition Language (IDL): In CORBA, a declarative language that is used to describe object interfaces, without regard to object implementation.
�interface handle: In DCE Remote Procedure Call (RPC), a reference in code to an interface specification.
�interface identifier: In DCE Remote Procedure Call, a string containing the interface Universal Unique Identifier (UUID) and major and minor version numbers of a given RPC interface.
�interface inheritance: The inheritance of the interface of a more specific element. Does not include inheritance of the implementation.
�interface map: A map that resolves and reconciles the differences between the interfaces of interacting components. There are two levels of interface maps: operation mappings and parameter mappings.
�interface name: A logical name for an Ethernet or token-ring line that is created when TCP/IP is installed on the system. Each name is unique and consists of 1 to 128 characters.
�Interface Repository (IR): A byte-stream file that contains the data used to build the run-time objects.
�interface specification: (1) In DCE Remote Procedure Call (RPC), an opaque data structure that is generated by the DCE Interface Definition Language (IDL) compiler from an interface definition. It contains identifying and descriptive information about an RPC interface.; (2) Internet Protocol (IP) information that is used to transfer data in a network. Examples of IP information include an address, network mask, line description, line type, current status, maximum transmission unit, and type of service.
�interface UUID: In DCE Remote Procedure Call (RPC), the Universal Unique Identifier (UUID) generated for an RPC interface definition using the UUID generator.
�interface validation exit: A routine that, when used with the binder, automatically resolves conflicting references within Fortran routines.
�interference: (1) The distorted portion of a received signal.; (2) In optics, the interaction of two or more beams of coherent or partially coherent light.
�intergroup resolution: The process of determining which policies apply when a policy evaluation set for a decision request contains policies with the same name in different policy groups.
�interim fix: A certified fix that is generally available to all customers between regularly scheduled fix packs, refresh packs, or releases. See also fix pack, test fix, refresh pack, manufacturing refresh, fix.
�Interior Gateway Protocol (IGP): An Internet protocol that is used by gateways in an autonomous system to transfer routing information.
�interlanguage call (ILC): A call to a procedure or function made by a program written in one language to a procedure or function coded in a different language.
�interlanguage communication (ILC): The ability of routines written in different programming languages to communicate. ILC support enables the application writer to readily build applications from component routines written in a variety of languages.
�interleave: To automatically create two striped partitions across the drives in a RAID-5 array, both of which use the count-key-data (CKD) record format. See also custom volume.
�interleaving: (1) The simultaneous accessing of two or more bytes or streams of data from distinct storage units.; (2) The alternating of two or more operations or functions through the overlapped use of a computer facility.
�interlock: See deadlock.
�intermediate assistance level: The type of displays that supports all system tasks and uses computer terminology. Complicated tasks can be done using the intermediate assistance level.
�intermediate block check: In BSC, a check that verifies each record, rather than the contents of the total block, when large blocks of data are received.
�intermediate CDD: A customization definition document (CDD) to which placeholders have been added, but for which placeholder values have not yet been specified.
�intermediate database server: The target of a request from a local application or a remote application requester that is forwarded to another database server.
�intermediate device: In IPDS architecture, a device that operates on the data stream and is situated between a printer and a presentation services program in the host. Examples include devices that capture and cache resources and devices that spool the data stream.
�intermediate evaluation: A process that provides intermediate results on a more frequent basis than the configured service level objective (SLO) evaluation period. The data is provided periodically from the beginning of the SLO evaluation period up to the most recent full intermediate evaluation interval.
�intermediate representation of a program: The result of the first translation phase of language compilers for the extended program model. The intermediate representation of a program is in the form of machine instruction source and is used as the input to the compiler's final phase, the program resolution monitor.
�intermediate routing function: A routing function that allows a network location to receive session data from an adjacent location and route it to the next location on the session path.
�intermediate routing node: A subarea node, which may receive and route sessions that neither originate in nor are destined for network addressable units in that subarea node.
�intermediate system: (1) See relay open system.; (2) In an MSC network, a system through which a message passes on its way from the input system to the destination system, or vice-versa, in which no processing other than routing is performed.
�intermediate system routing: In OSI, the process of selecting the intermediate systems through which a CLNS connection is to be routed. A set of quality-of-service values specifies the basis to be used in routing the connection.
�intermediate-text-block character (ITB character): The BSC transmission control character used to divide a block of text into smaller groups of text for an intermediate block check.
�intermediate violation: A type of violation that occurs during an intermediate evaluation process when a metric is breached and is marked without a final actual value.
�intermediate write: A type of update in which all changes made to checkpoint data are recorded. See also primary write, final write.
�internal CCD table: A CCD table that is not a registered replication source and therefore cannot be subscribed to. An internal CCD table is identified by the CCD_OWNER and CCD_TABLE columns for the row of the associated registered replication source. See also consistent-change-data table, external CCD table.
�internal command: A command that is processed directly by and that controls the command-line interface (CLI).
�internal copy group: A copy group within a print data set instead of within a form definition.
�internal data: (1) Data that is recognized only by the procedure or OPM program that defines it. Local data is deleted when the procedure returns control to the calling program or procedure. See also external data.; (2) In COBOL, the data described in a program excluding all external data items and external file connectors. Items described in the Linkage Section of a program are handled as internal data.
�internal decimal item: See packed decimal format.
�internal file connector: In COBOL, a file connector that is accessible to only one program in the run unit.
�internal label: The machine-readable label that describes data on a medium. The internal label for standard label tapes is recorded in the header label and magnetically recorded on the tape media. See also external label.
�internal local area network (ILAN): A local area network (LAN) that allows APPC and APPN communications between operating systems running on the same system without requiring a physical communications link. The connection takes place within the lower levels of the software. Communications to other systems requires a physical link.
�internal lock: A mechanism used by CICS to protect individual resource definitions against concurrent updates.
�internal medium map: See internal copy group.
�internal microprogram instruction (IMPI): The complex instruction set computer (CISC) processor on which the licensed programs run.
�internal object: (1) An object that the system program uses to store the information needed to perform some system functions. Internal objects cannot be displayed by a user. For example, you cannot use a display command (like the Display Library [DSPLIB] command) to display internal objects. See also external object.; (2) A structured field that can be included as part of a resource or a print job (data set or file), but that cannot be accessed separately.
�internal partner: A company that purchases WebSphere Partner Gateway and acts as the hub community for its partners. The internal partner has one administrative user, the manager admin, who is responsible for the health and maintenance of the internal partner's portion of the community.
�internal rate of return (IRR): (1) The interest rate received for an investment, based on anticipated expenses and income that will occur at regular periods; (2) The interest rate that makes the present value of cash flows in an evaluation period plus the terminal market value equal to the initial market value.
�internal reader: A facility that enables jobs to be submitted to JES from time-sharing logons, started tasks, or other jobs.
�internal resource lock manager (IRLM): (1) A global lock manager that resides in its own address space, and gives the option of keeping most of its control blocks in local storage instead of in the common storage area (CSA).; (2) A z/OS subsystem that DB2 uses to control communication and database locking.; (3) A subsystem in an z/OS environment that provides lock management, used by IMSs to share data.
�internal response time: Elapsed time from the message to start a transaction being received by CICS until the time that the transaction ends.
�internal routine: In REXX, a routine that exists inside the user's program and is identified by a label.
�internal space object: An index that tracks the internal space objects that store message information. The internal space object is an internal object that is automatically created in the QUSRSYS library when the Start Mail Server Framework (STRMSF) command is used.
�internal storage: All main and auxiliary storage in the system.
�internal system journal: A journal that is used by IBM programs to manage and recover some system functions such as system-managed access-path protection. Internal system journals cannot be used explicitly by users.
�internal throughput rate (ITR): The number of completed transactions per processor-busy second. (Processor busy seconds can be calculated by multiplying elapsed seconds by the processor utilization percentage).
�internal trace: (1) In CICS, an option whereby trace entries are written to an internal control region table. The table, which can be specified to wrap when full, is most appropriate if the user does not need to capture a large number of trace entries.; (2) A CICS trace facility that is present in virtual storage. When CICS detects an exception condition, an entry always goes to the internal trace table, even if you have turned tracing off.
�internal transition: A transition signifying a response to an event without changing the state of an object.
�internal view: In the Reusable Asset Specification (RAS), the internals of a collaboration such as the class diagrams and sequence diagrams. Typically it is within this view that one can see where to extend and fill the parameters.
�International Components for Unicode (ICU): An open-source, portable set of C/C++ and Java libraries for Unicode support, software internationalization, and globalization that is designed to give applications the same result on all platforms.
�International Development Markup Language (IDML): The XML format that is used to store data in the discovery library.
�internationalized: In national language support, pertaining to a program that can operate in all language environments without any change to the program.
�International Organization for Standardization (ISO): An international body charged with creating standards to facilitate the exchange of goods and services as well as cooperation in intellectual, scientific, technological, and economic activity.
�International Organization for Standardization/International Electrotechnical Commission 10646 UCS-2 level 1 (ISO/IEC 10646): An international encoding scheme that has full character data integrity with Unicode. ISO/IEC 10646 assigns 16 bits for each character, which can be used to represent most of the written languages in the world. The ISO/IEC 10646 character set is supported by System i products with a fixed character set.
�International Program License Agreement (IPLA): A licensing program that regulates the sale and purchase of licensed programs.
�international standard: A standards document that is given final approval by the International Organization for Standardization.
�International Telecommunication Union (ITU): A United Nations treaty agency whose mission is to ensure that all nations have access to telecommunication services. The ITU works closely with all standards organizations to form an international uniform standards system for communication. It comprises three branches: telecommunications standardization, telecommunications development, and radiocommunication. See also European Telecommunications Standards Institute.
�International Telecommunication Union Telecommunication Standardization Sector (ITU-T): The part of the International Telecommunication Union (ITU) that is responsible for developing recommendations for telecommunications.
�internet: In TCP/IP, a collection of interconnected networks that function as a single, large network.
�Internet: The worldwide collection of interconnected networks that use the Internet suite of protocols and permit public access.
�Internet Architecture Board (IAB): The technical body that oversees (at a high level) the work of the Internet Engineering Task Force (IETF). The IAB approves the membership of the IETF.
�Internet client: A program (or user) that uses the Internet to make requests of and to receive results from an Internet server program. Different client programs are available to request different types of Internet services. A Web browser is one type of client program. File transfer protocol (FTP) is another.
�Internet Control Message Protocol (ICMP): An Internet protocol that is used by a gateway to communicate with a source host, for example, to report an error in a datagram.
�Internet drafts: Proposals, techniques, and mechanisms that document the Internet Engineering Task Force (IETF) work in progress and that define protocols and their characteristics in an internet. After the drafts are approved, they become Requests for Comments (RFCs).
�Internet Engineering Steering Group (IESG): The executive committee of the Internet Engineering Task Force (IETF). The IESG reviews and oversees the work produced by individual IETF working groups and charters all new working groups.
�Internet Engineering Task Force (IETF): The task force of the Internet Architecture Board (IAB) that is responsible for solving the short-term engineering needs of the Internet. The IETF consists of numerous working groups, each focused on a particular problem. Specifications proposed as standards typically undergo a period of development and review before they are adopted as standards.
�Internet host: A computer that is connected to the Internet or an intranet. An Internet host might run more than one Internet server program. For example, the Internet host might run an FTP server to respond to requests from FTP client applications. The same host might run an HTTP server to respond to requests from clients who are using Web browsers. Server programs typically run in the background (in batch) on the host system.
�Internet Inter-ORB Protocol (IIOP): A protocol used for communication between Common Object Request Broker Architecture (CORBA) object request brokers. See also Common Object Request Broker Architecture.
�Internet Key Exchange (IKE): A protocol that, when used with IPSec, supports the automatic negotiation of security associations as well as the automatic generation and refresh of cryptographic keys. Generally, IKE is used as part of virtual private networking.
�internet layer: In Internet communications, the layer corresponding to the network layer in Open Systems Interconnection (OSI) architecture.
�Internet Message Access Protocol (IMAP): A protocol that allows a client to retrieve and manipulate mail messages that are stored on a server.
�Internet name: An alias for an IP address that consists of words rather than numbers.
�Internet Printing Protocol (IPP): An application-level protocol that supports distributed printing on the Internet. IPP uses a client/server architecture and defines the interactions between IPP clients (typically workstations) and IPP servers.
�Internet Protocol (IP): A protocol that routes data through a network or interconnected networks. This protocol acts as an intermediary between the higher protocol layers and the physical network. See also Transmission Control Protocol.
�Internet Protocol address: See IP address.
�Internet router: A device that enables an IP host to act as a gateway for routing data between separate networks that use a specific adapter.
�Internet screenphone: A telephone-like appliance with a built-in display screen that may be used to call up Internet sites quickly.
�Internet Security Association and Key Management Protocol (ISAKMP): A protocol that provides the mechanism to establish Security Associations (SA) and cryptographic keys in an Internet environment. ISAKMP establishes the security characteristics and cryptographic keys to be used in a virtual private network (VPN).
�Internet server: A program (or set of programs) that accepts requests from corresponding client programs over the Internet and responds to those clients over the Internet.
�Internet server application programming interface (ISAPI): The Internet server application programming interface supported by IIS. Developers use this interface to create programs, called extensions, that extend the capabilities of IIS.
�Internet service provider (ISP): An organization that provides access to the Internet.
�Internet site document: A document that contains configuration settings for an Internet protocol -- HTTP, LDAP, POP3, IMAP, SMTP Inbound, and DIIOP. Service providers use Internet site documents to configure Internet protocols for hosted organizations.
�Internet suite of protocols: Networking standards defined by the Internet Engineering Task Force (IETF), for example, TCP/IP.
�internetwork: Any wide area network connecting more than one network.
�interoperability: The ability of a computer or program to work with other computers or programs.
�Interoperable Naming Service (INS): A program that supports the configuration of the Object Request Broker (ORB) administratively to return object references.
�interoperable object reference (IOR): An object reference with which an application can make a remote method call on a CORBA object. This reference contains all the information needed to route a message directly to the appropriate server.
�inter-partition parallelism: A single database operation (for example, index creation) that is run in parallel across the partitions of a partitioned database. See also intra-partition parallelism, intra-query parallelism, massively parallel processing.
�interpreted status: In performance monitoring, the status (of an active policy) that indicates that a problem other than a specific threshold violation has occurred, such as a J2EE application exception or an ARM failure. See also violation status.
�interpreter: A program that translates and runs each instruction of a high-level programming language before it translates and runs the next instruction.
�interprocedural analysis (IPA): A process for performing optimizations across compilation units.
�interprocess communication (IPC): (1) The process by which programs send messages to each other. Sockets, semaphores, signals, and internal message queues are common methods of interprocess communication.; (2) A mechanism of an operating system that allows processes to communicate with each other within the same computer or over a network.
�interprocessor block level sharing: See level three data sharing.
�interrecord-separator character (IRS): In BSC, a transmission control character that is used to separate records within a block of data.
�interregion communication (IRC): The method by which CICS provides communication between a CICS region and another region in the same processor. Interregion communication is used for multiregion operation (MRO). See also intersystem communication.
�interrupt: (1) Suspension of a process, such as execution of a computer program, caused by an external event and performed in such a way that the process can be resumed.; (2) A signal sent by an I/O device to the processor when an error has occurred or when assistance is needed to complete I/O. An interrupt usually suspends the running of the program that is currently running.; (3) A condition that applies to a simulation that causes the simulation execution to be halted if the condition is met.; (4) To stop a process in such a way that it can be resumed.
�interrupt number: The identification that is used to send a signal from an installed hardware feature to the CPU requesting attention. Different hardware features use different interrupt numbers.
�interrupt request (IRQ): An input found on a processor that causes it to suspend normal instruction execution temporarily and to start executing an interrupt handler routine.
�intersection: An SQL operation that involves the INTERSECT set operator, which combines two result tables. The result of an intersection operation consists of all of the rows that are in both result tables.
�intersection data: Any user data in a logical child segment that does not include the logical parent's concatenated key.
�interservice communication: In MERVA ESA, a facility that enables communication among services if MERVA ESA is running in a multisystem environment.
�inter-switch link (ISL): The physical connection that carries a protocol for interconnecting multiple routers and switches in a storage area network (SAN).
�intersystem communication (ISC): (1) A CICS facility that provides inbound and outbound support for communication from other computer systems. See also interregion communication.; (2) An extension of IMS Multiple Systems Coupling that permits the connection of IMS to another IMS subsystem, to CICS/MVS, or to a user-written subsystem, provided both subsystems use ISC.
�intersystem communications function (ICF): A function of the operating system that allows a program to communicate interactively with another program or system.
�intertask communication: A facility that enables application programs to communicate with the MERVA nucleus and so request a central service.
�inter-transaction affinity: A relationship between a set of transactions that share a common resource and coordinate their processing. Transaction affinity between two or more CICS transactions is caused by the transactions using techniques to pass information between one another, or to synchronize activity between one another, in a way that requires the transactions to execute in the same CICS region.
�interval control: In CICS, a facility that handles, synchronizes, and initiates the tasks requested by user application programs and CICS internal service routines.
�interval control element (ICE): An entry under CICS interval control that is waiting in an unexpired state. Its defined date and time (to become current) are in the future. When an ICE expires it becomes an automatic initiation descriptor (AID).
�interval control program (ICP): The CICS program that provides time-dependent facilities. Together with task control, interval control (sometimes called time management) provides various optional task functions (such as system stall detection, runaway task control, and task synchronization) based on specified intervals of time, or the time of day.
�interval migration: In DFSMShsm, automatic migration that occurs when a threshold level of occupancy is reached or exceeded on a DFSMShsm-managed volume during a specified time interval. Data sets are moved from the volume, beginning with the largest eligible data set, until the low threshold of occupancy is reached.
�interval statistics: (1) In CICS Transaction Server only, CICS statistics gathered at user-specified intervals and written to the SMF data set. See also end-of-day statistics, requested reset statistics, requested statistics, unsolicited statistics.; (2) In CICS/VSE, CICS statistics gathered at user-specified intervals and written to the CSSM or CSSN transient data destination.
�interval timing: In SQL replication, the process of controlling how frequently a replication subscription cycle runs.
�intervention-required exception: An error that causes printing to stop until an operator performs a required action.
�intra frame: See information frame.
�intranet: An organization's internal network that uses the IP protocol.
�in-transit flow: A flow that is created when the server crashes during a service call transmission in a collaboration configured for Service Call In-Transit persistence.
�intrapartition destination: In CICS, a type of transient data queue used subsequently as input data to another task within CICS.
�intra-partition parallelism: The subdivision of a single database operation (for example, index creation) into multiple parts, which are then executed in parallel within a single database partition. See also inter-partition parallelism.
�intrapartition transient data (TD): A CICS facility for temporarily saving data in the form of queues, called destinations. See also extrapartition transient data.
�intraprocessor block level sharing: See level two data sharing.
�intra-query parallelism: The ability to process parts of a single query at the same time using intra-partition parallelism, inter-partition parallelism, or both. See also inter-partition parallelism.
�intrarecord data structure: In COBOL, the entire collection of groups and elementary data items from a logical record that is defined by an adjacent subset of the data description entries that describe that record. These data description entries include all entries whose level-number is greater than the level-number of the first data description entry describing the intrarecord data structure.
�intrasystem communications: A function that allows two programs that are running in two different jobs on the same system to communicate with each other through an ICF file.
�introspector: In Java, a class (java.beans.Introspector) that provides a standard way for tools to learn about the properties, events, and methods supported by a target bean. Introspectors follow the JavaBeans specification.
�intrusion detection scan: A system program that detects attempts to hack into, disrupt, or deny service to the system.
�intrusion detection system (IDS): (1) Software that detects attempts or successful attacks on monitored resources that are part of a network or host system.; (2) Software that notifies the user of attempts to hack into, disrupt, or deny service to the system.
�intrusion prevention system (IPS): A system that attempts to deny potentially malicious activity. The denial mechanisms could involve filtering, tracking, or setting rate limits.
�invalidate: To remove a logical data unit from cache memory because it cannot support continued access to the logical data unit on the device. This removal might be the result of a failure within the storage server or a storage device that is associated with the device.
�INVALID KEY condition: In COBOL, a run-time condition in which the value of a key for an indexed or direct file does not give a correct reference to the file.
�invalid package: A package that depends on an object that has been dropped. See also inoperative package.
�invariant: Pertaining to constraints on a set of data values that must always be satisfied. A single data value may be constrained (for example, x > 5) or the relationships between the data values may be constrained (for example, x > y).
�invariant character set: A set of characters, such as the syntactic character set, having the same code point assignments in all coded character sets or code pages using a given encoding scheme. See also coded character set, encoding scheme, code page.
�in-vehicle information system (IVIS): A system that enables intelligent vehicles to provide the functionality to increase the productivity and safety of the driver.
�inventory allocation: The process of designating inventory for an order against inventory that actually exists in a fulfillment center. Allocation is not the same as inventory reservation, which is a more stringent policy, and does not typically apply to orders. See also inventory allocation against expected inventory, inventory sharing arrangement, inventory reservation.
�inventory allocation against expected inventory: The process of designating inventory for an order against inventory that is expected to be received at a fulfillment center. This information is typically found in an expected inventory record. See also inventory allocation.
�inventory condition: The set of software and hardware configuration requirements that is defined for each subscriber to a reference model. Before a reference model can be applied, the inventory condition must be met.
�inventory data handler: In a Scalable Collection Service topology, the Inventory object that receives data from an inventory scan and uses one or more connections to send the data to the configuration repository.
�inventory management: In DFSMSrmm, the regular tasks that need to be performed to maintain the control data set (CDS). See also expiration processing, storage-location management processing, vital record processing, storage location.
�inventory on hand: Inventory that is physically available to fulfill orders.
�inventory receipt: The receipt of products at a fulfillment center. Products are either expected and recorded in expected inventory records, or received ad hoc. Ad hoc inventory receipts are not recorded in expected inventory records. See also ad hoc inventory receipt, expected inventory record.
�inventory receiver: See inventory data handler.
�inventory report: A report that provides inventories of software products, patches, and images that are available to be installed or are already installed on various data center systems. Inventories can be made at data center object, system, tier, and application levels.
�inventory reservation: The process of designating inventory for a particular purpose and that is not available to allocate to orders. See also inventory allocation.
�inventory scan: The process of gathering hardware and software information for a network computing environment. A scan occurs over managed resources and stores inventory information in the data model.
�inventory sharing arrangement: An arrangement whereby a store makes its inventory receipts available to another store for inventory allocation. See also inventory allocation.
�inventory-software dictionary: A file that tracks the software installed on managed systems in a network.
�inverted HDLC: The conversion of 0-bits to 1-bits, and vice versa, to guarantee the transmission of data at the data link layer. The data link control protocol must be an HDLC-based protocol.
�invite-program-device operation: An input/output operation that invites an acquired program device to send input to a program and returns control to the program without waiting for the input to arrive.
�invocation: The activation of a program or procedure.
�invocation credential: An identity with which to invoke a downstream method. The receiving server requires this identity with the sending server identity to accept the asserted identity.
�invoke ID: In the DCE X/Open Directory Service, an integer used to distinguished an asynchronous directory operation from all other outstanding ones.
�invoke medium map (IMM): In printing, a structured field that is used to switch copy groups within a form definition.
�invoker attribute: An assembly property for a Web module that is used by the servlet that implements the invocation behavior.
�I/O: See input/output.
�IO1: A data tower of an Intelligent Printer Data Stream (IPDS) construct that represents image data. Both IM1 and IO1 represent a raster pattern, but IO1 commands provide additional functions.
�IOA (I/O adapter): See input/output adapter.
�I/O adapter (IOA): See input/output adapter.
�IOAI: See input output area input.
�IOC (I/O controller): (1) See input/output controller.; (2) See only-in-chain.
�IOCA: See Image Object Content Architecture.
�I/O card Licensed Internal Code: The Licensed Internal Code in a controller or adapter card.
�IOCDS: See input/output configuration data set.
�I/O channel: See input/output channel.
�I/O configuration program (IOCP): See input/output configuration program.
�I-O control: In COBOL, the name of the header for an Environment Division paragraph in which program requirements for specific input/output techniques are specified. These techniques include checkpoints, the sharing of the same areas by several data files, and multiple file storage on a single input/output device.
�I/O controller (IOC): See input/output controller.
�IOCP (I/O configuration program): (1) See input/output configuration program.; (2) A Windows NT scheduling construct that is tied directly to a device handle and any I/O requests made to it. Using I/O completion ports enables matching of notifications to I/O completions and minimizes context switches among worker threads. They provide a more efficient method for multithreaded server applications to process data.
�IOD: See in-order delivery.
�I/O device: An addressable I/O unit, such as a direct access storage device (DASD), magnetic tape device, or printer.
�IODF: See input/output definition file.
�I/O error manager: The PSF subcomponent that analyzes I/O errors, determines the recovery action, and directs I/O error recovery and cleanup.
�I/O feedback area: In the C language, an area made up of two sections: the common area and the file-dependent area. The common area contains information about I/O operations performed on the file, such as the number of operations performed and which operation was performed last. The file-dependent area contains file-specific information for display, database, printer, and ICF files.
�I/O group: A collection of virtual disks (VDisks) and node relationships that present a common interface to host systems.
�I/O interface: An interface that enables a host to perform read and write operations with its associated peripheral devices.
�I-O mode: In COBOL, an open mode where records can be read from, written to, or removed from the file.
�I/O node: A Blue Gene core node that is responsible, in part, for providing I/O services to compute nodes.
�IOP (I/O processor): See input/output processor.
�I/O PCB: (1) See input/output program communication block.; (2) See input/output PCB.
�IOP-level partitioning: A dedicated allocation of the input/output processor (IOP) and all accompanying resources (input/output devices) to a particular logical partition. IOPs on a single bus may be dedicated to different logical partitions. The bus resources that contain these IOPs must be shared. See also bus-level partitioning.
�I/O prevention: The z/OS process that, during an XRF takeover, ensures that the failing active IMS cannot change the databases during the takeover.
�I/O Priority Queueing: A facility that enables the system administrator to set priorities for queueing I/O signals from different system images. See also multiple allegiance, parallel access volume.
�I/O processor (IOP): See input/output processor.
�IOR: See interoperable object reference.
�IOS: See I/O supervisor.
�I/O sequential response time: The time that an I/O request is queued in processor memory waiting for previous I/O operations to the same volume to finish.
�I/O server: Software that provides I/O service to other logical partitions on the same system.
�I-O status: In COBOL, a conceptual entity that contains the two-character value indicating the resulting status of an input-output operation. This value is made available to the program through the use of the FILE STATUS clause in the file control entry for the file.
�I/O Stream Library: A class library that provides the facilities to deal with many varieties of input and output.
�I/O supervisor (IOS)
�I/O throttling rate: The maximum rate at which an I/O transaction is accepted for a virtual disk (VDisk).
�I/O toleration: The IMS process that, during a takeover, allows transaction processing after a takeover before I/O prevention has completed.
�IP: (1) See intelligent peripheral.; (2) See Internet Protocol.
�IPA: See interprocedural analysis.
�IP address (Internet Protocol address): A unique address for a device or logical unit on a network that uses the IP standard. See also static IP address, dynamic IP address.
�IPC: See interprocess communication.
�IPCS: See Interactive Problem Control System.
�IP datagram: A unit of information that is sent across a TCP/IP network. An IP datagram contains both data and header information, such as the IP addresses of the origin and of the destination.
�IPDS: See Intelligent Printer Data Stream.
�iPDU: See intelligent power distribution unit.
�IPF: See Information Presentation Facility.
�IPF file: See Information Presentation Facility file.
�IP filter: A filter that provides the basic protection mechanism for a firewall by determining what traffic passes through the firewall based on IP session details. This protects the secure network from outsiders who use unsophisticated techniques (such as scanning for secure servers) or even the most sophisticated techniques (such as IP address spoofing). IP filters are the base on which the other tools are constructed, providing the infrastructure in which they operate and denying access to all but the most determined cracker.
�IPI: See intelligent peripheral interface.
�IPI-3: The IBM implementation of the proposed ANSI/X3T9.3 standard defining the electrical, data link protocol, and functional interfaces.
�IPL: See initial program load.
�IPLA: See International Program License Agreement.
�IP message: In-process message. A message that is in the process of being transferred to another application.
�IP multicast: Transmission of an Internet Protocol (IP) datagram to a set of systems that form a single multicast group.
�IP over IPX: A function of the operating system that allows an application using the sockets' communications application programming interface (API), with address family AF_INET, to communicate interactively with another program or system over an Internetwork Package Exchange (IPX) network.
�IP over SNA: A function of the operating system that allows an application using the sockets communications API, with address family AF_INET, to communicate interactively with another program or system over an SNA network.
�IPP: See Internet Printing Protocol.
�IP packet security: See packet rule.
�IP phone call: An audio conversation that uses IP technology. In an IP phone call, the user calls a person or a meeting using a computer instead of a traditional telephone.
�IP PrintWay (PrintWay): A component of Infoprint Server that transmits output data sets from the JES spool to printers in a TCP/IP and SNA network or to e-mail destinations.
�ips: See inches per second.
�IPS: See intrusion prevention system.
�IPSec: (1) See IP Security Architecture.; (2) See IP security protocol.
�IP Security Architecture (IPSec): A collection of Internet Engineering Task Force (IETF) standards that define an architecture at the Internet Protocol (IP) layer to protect IP traffic by using various security services.
�IP security protocol (IPSec): A protocol that provides cryptographic security services at the network layer.
�IP socket: The port that is concatenated with the Internet Protocol (IP) address.
�IP sprayer: A device that is located between inbound requests from the users and the application server nodes that reroutes requests across nodes.
�IQN: See iSCSI qualified name.
�IR: (1) See installation repository.; (2) See Interface Repository.; (3) See infrared technology.
�IRC: See interregion communication.
�IRLM: (1) See internal resource lock manager.; (2) See IMS Resource Lock Manager.
�IRLM session: An IRLM may have two kinds of VTAM sessions with another IRLM: a primary session and a secondary session (also called an alternate session).
�IRQ: See interrupt request.
�IRR (IRR): See internal rate of return.
�IRS: See interrecord-separator character.
�IRSS: See intelligent remote station support.
�IS-95: Spread spectrum air interface technology used in some digital cellular and personal communications services, and other wireless networks.
�ISA (Support Assistant): See IBM Support Assistant.
�ISAKMP: See Internet Security Association and Key Management Protocol.
�ISAM: See indexed sequential access method.
�ISAM interface: A set of routines that allow a processing program that is coded to use the indexed sequential access method (ISAM) to gain access to a Virtual Storage Access Method (VSAM) key-sequenced data set (KSDS).
�ISAPI: See Internet server application programming interface.
�ISC: (1) See intersystem communication.; (2) See Integrated Solutions Console.
�iSCSI: The encapsulation and transfer of the SCSI command set and data over IP networks. See also Small Computer System Interface.
�iSCSI client logical-unit number (iLUN): A unique number that is assigned to each virtual logical unit number (VLUN). The iLUN for a single client starts at zero and increments sequentially.
�iSCSI qualified name (IQN): A unique name that identifies an iSCSI target adapter or an iSCSI initiator adapter as defined by the iSCSI standard (RFC 3722).
�ISC static user: An Intersystem Communication user defined using the SUBPOOL macro in an IMS system definition.
�ISDB: See interactive source debugger.
�ISDN: See Integrated Services Digital Network.
�ISDN data link control (IDLC): An asynchronous, balanced data link protocol used between two systems to exchange information over an ISDN B-channel.
�ISDN two B-channel transfer: See Integrated Services Digital Network two B-channel transfer.
�ISDN-UP: See Integrated Services Digital Network user part.
�ISDRVR: See input service driver.
�iSeries: See System i.
�iSeries Navigator: See System i Navigator.
�iSeries project: See System i project.
�ISI: See instance-specific information.
�ISL: See inter-switch link.
�ISL hop: Considering all pairs of node ports (N_ports) in a fabric and measuring distance only in terms of Inter-Switch Links (ISLs) in the fabric, the number of ISLs traversed on the shortest route between the pair of nodes that are farthest apart in the fabric.
�ISL Trunking: A feature that distributes traffic over the combined bandwidth of up to four Inter-Switch Links (ISLs) between adjacent switches, while preserving in-order delivery. A set of trunked ISLs is called a trunking group; each port employed in a trunking group is called a trunking port. See also master port.
�ISMF: See Interactive Storage Management Facility.
�ISMP: See integrated system management processor.
�ISN: See input sequence number.
�ISN acknowledgment: A collective term for the various kinds of acknowledgments sent by the SWIFT network.
�ISO: See International Organization for Standardization.
�ISO 4217: A three-letter format standard adopted by the International Organization for Standardization, used to indicate the currency in which a monetary amount is expressed. For example, the United States dollar is expressed as USD.
�ISO 8208: See X.25.
�isochronous: Property of a communications signal that is delivered at a specified, bounded rate, which is desirable for continuous data such as voice and full-motion video.
�ISO forms: Pertaining to a set of paper sizes selected from those standardized by the International Organization for Standardization (ISO) for use in data processing.
�ISO/IEC 10646: See International Organization for Standardization/International Electrotechnical Commission 10646 UCS-2 level 1.
�isolated: Pertaining to a transaction in which only the application changing the data knows about the individual update requests until the transaction is complete.
�isolated E_port: An expansion port (E_port) that is online but not operational between switches due to an overlapping domain ID or nonidentical parameters such as error detect timeout values (E_D_TOVs). See also expansion port.
�isolated log sender (ILS): In an RSR environment, a component of the Transport Manager Subsystem that sends gap data to the tracking subsystem.
�isolation: Even though transactions execute concurrently, they appear to be serialized. In other words, it appears to each transaction that any other transaction executed either before it, or after it. See also ACID property.
�isolation checking: A feature of InterChange Server that ensures that data revisited during execution of a transactional collaboration has not changed its value since the previous visit. The server performs isolation checking only for a transactional collaboration that has its transaction level set to Best Effort or Stringent. See also compensation.
�isolation level: An attribute that defines the degree to which an application process is isolated from other concurrently executing application processes. Isolation levels generally relate to the behavior of an application with respect to locks.
�isolation procedure: Written information used by service representatives to repair IBM equipment. An isolation procedure contains yes/no questions and procedures that direct the user to the failing part of the equipment.
�ISO model: A set of rules for data communication, sanctioned by the International Organization for Standardization (ISO). The ISO protocols enable systems supplied by different vendors to connect and communicate. They are the basis of the open systems interconnection (OSI) standards.
�ISP: See Internet service provider.
�ISPF: See Interactive System Productivity Facility.
�Interactive System Productivity Facility/Program Development Facility (ISPF/PDF): An IBM licensed program that provides a work environment for the development of programs and the use of functions like Edit and Browse.
�ISPF/PDF: See Interactive System Productivity Facility/Program Development Facility.
�ISQL: See interactive SQL.
�ISS: See image symbol set.
�issuer: In e-commerce, a financial institution that issues payment cards to individuals. An issuer can act as its own certificate authority (CA) or can contract with a third party for the service.
�ISUP: See Integrated Services Digital Network user part.
�ISV: See independent software vendor.
�ITB character: See intermediate-text-block character.
�item: (1) In dynamic data exchange, the identifier for a source of data. For example, the top, left cell position in a spreadsheet is row 1, column 1. This cell's item is R1C1.; (2) The data in one line of an indexed field.; (3) An entity that has a part number or SKU. See also defining attribute.; (4) In Content Manager, generic term for an instance of an item type. For example, an item might be a folder, document, video, or image. See also semantic type.; (5) Generic term for the smallest unit of information that Information Integrator for Content administers. Each item has an identifier. For example, an item might be a folder or a document.; (6) In EGL, a named area of memory that contains a single value.; (7) In XQuery, a part of a sequence that is either an atomic value or a node. See also atomic value, node.
�item descriptor: A description of a single note item. An item descriptor is stored in an array of fixed-size structures in a note header. Each structure has information describing the item name, type, value, size, and so on.
�item type: A template for defining and later locating like items, consisting of a root component, zero or more child components, and a classification. See also item type classification.
�item type classification: A categorization within an item type that further identifies the items of that item type. All items of the same item type have the same item type classification. See also index class.
�iteration: (1) The repetition of a set of computer instructions until a condition is satisfied.; (2) See loop.; (3) A milestone in the software development process for which the development team delivers a working version of the project for testing.
�iterative development: An incremental agile software development strategy for designing software by dividing larger projects into several smaller projects, then approaching the smaller projects in four phases: requirements analysis, design, implementation and testing. See also evolutionary development, incremental development, extreme programming.
�iterative server: A server that can handle only one connection at a time. It can accept a new connection request only when it has completed processing the transaction started by a previous request. See also concurrent server.
�iterator: (1) A class or construct that is used to step through a collection of objects one at a time.; (2) In a collaboration template's activity diagram, a specialized form of subdiagram that is analogous to a "for" loop and that allows a collaboration to perform an operation on all the attributes of a business object or on all the elements of a business object array. Also, the activity diagram symbol that embeds a reference to a nested diagram that implements such a looping operation, and the diagram that contains the looping behavior.; (3) In SQLJ, an object that contains the result set of a query. An iterator is equivalent to a cursor in other host languages.
�iterator declaration clause: In SQLJ, a statement that generates an iterator declaration class. An iterator is an object of an iterator declaration class.
�ITF: See interactive terminal facility.
�IT governance: See governance processes.
�ITIL: See Information Technology Infrastructure Library.
�ITR: See internal throughput rate.
�IT services management workflow: See workflow.
�ITU: See International Telecommunication Union.
�ITU-2000: The new third generation global standard for mobile telecommunications, coined by the International Telecommunications Union. Also known as IMT-2000.
�ITU-T: (1) See Telecommunication Standardization Sector.; (2) See International Telecommunication Union Telecommunication Standardization Sector.
�IU: (1) See installable unit.; (2) See information unit.
�IUDD: See installable unit deployment descriptor.
�IVIS: See in-vehicle information system.
�IVM: See Integrated Virtualization Manager.
�IVP: See installation verification procedure.
�IVR: See interactive voice response.
�IXA: See Integrated xSeries Adapter.
�IXF: See Integration Exchange Format.
�IXS: See Integrated xSeries Server.

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�

�J2EE: See Java 2 Platform, Enterprise Edition.
�J2EE application: See Java EE application.
�J2EE environment file: See Java EE environment file.
�J2EE Request Profiler: See Java EE Request Profiler.
�J2EE server: See Java EE server.
�J2EE servlet policy: See Java EE servlet policy.
�J2SE: See Java 2 Platform, Standard Edition.
�JAAS: See Java Authentication and Authorization Service.
�Jacl: See Java Command Language.
�JAF: See JavaBeans Activation Framework.
�Jamo: A set of consonants and vowels used in Korean Hangul.
�jam recovery copy counter: A counting device in a printer that identifies how many copies of a page have successfully passed the printer-defined jam recovery point but have not been counted by the jam recovery page counter.
�jam recovery page counter: A counting device in a printer that identifies how many pages have successfully passed the printer-defined jam recovery point.
�Japanese basic-Kanji character set: A subset of Japanese DBCS, consisting of commonly used Kanji characters. There are 3226 Kanji characters in this set.
�Japanese dictionary: See DBCS conversion dictionary.
�Japanese double-byte character set: An IBM-defined double-byte character set for Japanese, consisting of the Japanese non-Kanji set, basic Kanji set, extended Kanji set, and up to 4370 user-definable characters.
�Japanese extended-Kanji character set: A subset of Japanese DBCS, consisting of less commonly used Kanji characters. There are 3487 characters in this set.
�Japanese Industrial Standards Committee (JISC): The national standards-setting organization in Japan.
�Japanese non-Kanji character set: A subset of Japanese DBCS, consisting of non-Kanji characters like Greek, Russian, Roman numeric, alphanumeric and related symbols, Katakana, Hiragana, and special symbols. There are 550 characters in this set.
�JAR file: A Java archive file. See also enterprise archive, Web archive.
�Java: An object-oriented programming language for portable interpretive code that supports interaction among remote objects. Java was developed and specified by Sun Microsystems, Incorporated.
�Java 2 Connector security: See Java Connector security.
�Java 2 Platform, Enterprise Edition (J2EE): See Java Platform, Enterprise Edition.
�Java 2 Platform, Standard Edition (J2SE): See Java Platform, Standard Edition.
�Java API for XML (JAX): A set of Java-based APIs for handling various operations involving data defined through Extensible Markup Language (XML).
�Java API for XML-based RPC (JAX-RPC, JSR 101): A specification that describes application programming interfaces (APIs) and conventions for building Web services and Web service clients that use remote procedure calls (RPC) and XML.
�Java API for XML Web Services (JAX-WS): The next-generation Web services programming model that is based on dynamic proxies and Java annotations.
�Java Architecture for XML Binding (JAXB): A Java binding technology that supports transformation between schema and Java objects, as well as between XML instance documents and Java object instances.
�Java archive: A compressed file format for storing all of the resources that are required to install and run a Java program in a single file. See also enterprise archive, Web archive.
�Java Authentication and Authorization Service (JAAS): In Java EE technology, a standard API for performing security-based operations. Through JAAS, services can authenticate and authorize users while enabling the applications to remain independent from underlying technologies.
�Java batch processing region (JBP region): An IMS dependent region with a persistent JVM that allows the scheduling of online non-message-driven batch Java applications, similar to a BMP.
�Java bean: See bean.
�JavaBeans: As defined for Java by Sun Microsystems, a portable, platform-independent, reusable component model. See also bean.
�JavaBeans Activation Framework (JAF): A standard extension to the Java platform that determines arbitrary data types and available operations and can instantiate a bean to run pertinent services.
�Java class: A class that is written in the Java language.
�Java client application: A Java application, servlet or applet that communicates with the Gateway classes.
�Java Command Language (Jacl): A scripting language for the Java environment that is used to create Web content and to control Java applications.
�Java connector development kit (JCDK): A set of Java class libraries used when developing a Java connector. These libraries contain predefined classes that are used to derive connector-specific classes and libraries. They provide methods for implementing services such as tracing and logging.
�Java Connector security: An architecture designed to extend the end-to-end security model for Java EE-based applications to include enterprise information systems (EIS).
�Java Database Connectivity (JDBC): An industry standard for database-independent connectivity between the Java platform and a wide range of databases. The JDBC interface provides a call level interface for SQL-based and XQuery-based database access.
�Java Developer Connection (JDC): A service that is designed for individual developers. JDC provides online training, product discounts, feature articles, error information, and early access capabilities.
�Java Development Kit (JDK): See Java SE Development Kit.
�Java development tools (JDT): The Java development environment provided with Eclipse.
�Javadoc: (1) Pertaining to the tool that parses the declarations and documentation comments in a set of source files and produces a set of HTML pages describing the classes, inner classes, interfaces, constructors, methods, and fields.; (2) A tool that parses the declarations and documentation comments in a set of source files and produces a set of HTML pages describing the classes, inner classes, interfaces, constructors, methods, and fields. (Sun)
�Java EE: See Java Platform, Enterprise Edition.
�Java EE application: Any deployable unit of Java EE functionality. This unit can be a single module or a group of modules packaged into an enterprise archive (EAR) file with a Java EE application deployment descriptor. (Sun)
�Java EE Connector Architecture (JCA): A standard architecture for connecting the Java EE platform to heterogeneous enterprise information systems (EIS).
�Java EE environment file: An EGL-generated text file that has property-and-value pairs that can be used as the basis of information required in a Java EE runtime deployment descriptor.
�Java EE Request Profiler: The name of an agent that is attached to the application server process for the purpose of collecting data on the interception points of the application's requests.
�Java EE server: A runtime environment that provides EJB or Web containers.
�Java EE servlet policy: A policy that collects performance data for transactions that enter a servlet on one or more Java EE application servers. The Java EE servlet policy monitors only the monitored application, but provides the ability to view and analyze a detailed decomposition of the transaction in the topology report.
�Java EE Web Services policy: A policy that collects performance data for one or more elements of Web Service interfaces.
�Java file: An editable source file (with .java extension) that can be compiled into bytecode (a .class file).
�Java foundation class (JFC): An extension that adds graphical user interface class libraries to the Abstract Windowing Toolkit (AWT). (Sun)
�JavaGateway: In CICS Universal Clients Version 2, an interface between a Java program and CICS that allows a Java-enabled browser to dynamically download a Java Applet and transparently access CICS data. This has been replaced by the CICS Transaction Gateway.
�Java interpreter: A part of the Java virtual machine that interprets Java class files for a particular hardware platform.
�JavaMail API: A platform and protocol-independent framework for building Java-based mail client applications.
�Java Management Extensions (JMX): A means of doing management of and through Java technology. JMX is a universal, open extension of the Java programming language for management that can be deployed across all industries, wherever management is needed.
�Java message processing region (JMP region): An IMS dependent region with a persistent JVM that allows the scheduling of message-driven Java applications, similar to a MPP.
�Java Message Service (JMS): An application programming interface that provides Java language functions for handling messages.
�Java Naming and Directory Interface (JNDI): An extension to the Java platform that provides a standard interface for heterogeneous naming and directory services.
�Java Native Interface (JNI): A programming interface that allows Java code to interoperate with functions that are written in other programming languages.
�Java platform: A collective term for the Java language for writing programs; a set of APIs, class libraries, and other programs used in developing, compiling, and error-checking programs; and a Java virtual machine which loads and runs the class files. (Sun)
�Java Platform, Enterprise Edition (Java EE): An environment for developing and deploying enterprise applications, defined by Sun Microsystems Inc. The Java EE platform consists of a set of services, application programming interfaces (APIs), and protocols that provide the functionality for developing multitiered, Web-based applications. (Sun)
�Java Platform, Standard Edition (Java SE): The core Java technology platform. (Sun)
�Java Profiling Agent: The agent that is attached to the Java virtual machine (JVM) within which the profiled application runs. This is the agent that is used by default to measure the performance of a Java application as it executes.
�Java project: In Eclipse, a project that contains compilable Java source code and is a container for source folders or packages.
�Java runtime environment (JRE): A subset of a Java developer kit that contains the core executable programs and files that constitute the standard Java platform. The JRE includes the Java virtual machine (JVM), core classes, and supporting files.
�Java Runtime Environment (JRE): See Java SE Runtime Environment.
�JavaScript: A Web scripting language that is used in both browsers and Web servers. (Sun) See also scripting language.
�JavaScript Object Notation (JSON): A lightweight data-interchange format that is based on the object-literal notation of JavaScript. JSON is programming-language neutral but uses conventions from languages that include C, C++, C#, Java, JavaScript, Perl, Python.
�Java SE: See Java Platform, Standard Edition.
�Java Secure Socket Extension (JSSE): A Java package that enables secure Internet communications. It implements a Java version of the Secure Sockets Layer (SSL) and Transport Layer Security (TSL) protocols and supports data encryption, server authentication, message integrity, and optionally client authentication.
�Java SE Development Kit (JDK): The name of the software development kit that Sun Microsystems provides for the Java platform.
�Java SE Runtime Environment (JRE): A subset of the Sun Microsystems Java Development Kit (JDK) that contains the core executable programs and files that constitute the standard Java platform. The JRE includes the Java virtual machine (JVM), core classes, and supporting files.
�JavaServer Faces (JSF): A framework for building Web-based user interfaces in Java. Web developers can build applications by placing reusable UI components on a page, connecting the components to an application data source, and wiring client events to server event handlers. See also JavaServer Pages, Faces component, Faces JSP file.
�JavaServer Pages (JSP): A server-side scripting technology that enables Java code to be dynamically embedded within Web pages (HTML files) and run when the page is served, in order to return dynamic content to a client. See also JSP file, JSP page, JavaServer Faces.
�JavaServer Pages Standard Tag Library (JSTL): A standard tag library that provides support for common, structural tasks, such as: iteration and conditionals, processing XML documents, internationalization, and database access using the Structured Query Language (SQL). (Sun)
�Java Specification Request (JSR): A formally proposed specification for the Java platform.
�Java transformer: Software that converts Java bytecode to 64-bit reduced instruction set computer (RISC) machine instructions.
�Java virtual machine (JVM): A software implementation of a processor that runs compiled Java code (applets and applications).
�Java Virtual Machine Profiler Interface (JVMPI): A profiling tool that supports the collection of information, such as data about garbage collection and the Java virtual machine (JVM) API that runs the application server.
�Java wrapper: In EGL, a set of generated Java classes that can be embedded into a hand-written Java program to provide run-time access to other EGL-generated code.
�JAX: See Java API for XML.
�JAXB: See Java Architecture for XML Binding.
�JAX-RPC: See Java API for XML-based RPC.
�JAX-WS: See Java API for XML Web Services.
�JBP region: See Java batch processing region.
�JCDK: See Java connector development kit.
�JCL: See job control language.
�JCS: See job control statement.
�JCT: (1) See journal control table.; (2) See job control table.
�JDBC: See Java Database Connectivity.
�JDBC connection filter: A control that limits the amount of data that is transferred during the JDBC metadata load. The filter enhances performance.
�JDBC driver: A program included with database management systems to support the JDBC standard for providing access from Java applications to relational databases.
�JDC: See Java Developer Connection.
�JDK: (1) See Java Development Kit.; (2) See Java SE Development Kit.
�JDT: See Java development tools.
�JECL: See Job Entry Control Language.
�JES: See Job Entry Subsystem.
�JES2: An MVS subsystem that receives jobs into the system, converts them to internal format, selects them for execution, processes their output, and purges them from the system. In an installation with more than one processor, each JES2 processor independently controls its job input, scheduling, and output processing. See also Job Entry Subsystem, JES3.
�JES2 table: A JES2-defined table that is used to specify the default characteristics of many of its initialization parameters, commands, and other externals. See also table pair.
�JES3: An MVS subsystem that receives jobs into the system, converts them to internal format, selects them for execution, processes their output, and purges them from the system. In complexes that have several loosely coupled processing units, the JES3 program manages processors so that the global processor exercises centralized control over the local processors and distributes jobs to them using a common job queue. See also Job Entry Subsystem, JES2.
�JES3 auxiliary address space: An address space used exclusively for data areas that would otherwise be placed into the common service area (CSA). Parameters in initialization statements specify whether a JES3 auxiliary address space is desired and, if so, the size of each data area.
�JES3 device: The device that JES3 uses to communicate with the operator, read jobs, store jobs awaiting execution, and write job output.
�JES3-managed device: The device that JES3 allocates to jobs. See also jointly managed devices.
�JES3 spool access method (JSAM): Data management routines that serve address space requests, such as allocation and deallocation of buffers.
�JES control table (JESCT): A table into which one entry is placed for each job that JES3 is to process. Entries are arranged in the JCT in job priority order to facilitate later job selection by priority.
�JESCT: See JES control table.
�JES spool: A program that performs a peripheral operation, such as printing, while the computer is busy with other work. A common name for the JES2 or JES3 spool.
�Jetspeed: The open-source portal on which WebSphere Portal is based. Jetspeed is part of the Jakarta project by Apache.
�JFace: The midlevel user interface framework for building complex user interface pieces such as viewers. JFace works in conjunction with the Standard Widget Toolkit.
�JFC: See Java foundation class.
�JFS: See journaled file system.
�JID: See journal identifier.
�Jini: A trademark for technology licensed by Sun Microsystems. Jini is a Java-based connection technology. It allows Jini-compatible devices such as printers to connect transparently to a network and to interact.
�JISC: See Japanese Industrial Standards Committee.
�JIT compiler: See Just-In-Time compiler.
�jitter: A signal distortion through a network that causes packets to arrive out of order or differently than their original timing reference.
�JMP region: See Java message processing region.
�JMS: See Java Message Service.
�JMS data binding: A data binding that provides a mapping between the format used by an external JMS message and the Service Data Object (SDO) representation used by a Service Component Architecture (SCA) module.
�JMS domain: The message domain that includes all messages that are produced by the WebSphere MQ implementation of the Java Message Service standard. These messages, which have a message type of either JMSMap or JMSStream, are supported in the same way as messages in the XML domain and are parsed by the XML parser. See also BLOB domain, IDoc domain, MRM domain, XML domain.
�JMX: See Java Management Extensions.
�JNDI: See Java Naming and Directory Interface.
�JNI: See Java Native Interface.
�job: (1) A separately executable unit of work.; (2) In the Integrated Language Environment (ILE) model, a collection of resources and data that consists of one or more activation groups.; (3) See application process.; (4) A WebSphere DataStage application for data warehousing that specifies data sources, required transforms, and the destination of the data that is transformed.
�job accounting: A system function that collects information about a job's use of system resources and records that information in a journal.
�job action: The network attribute that controls the handling of a job submitted from remote locations through either the SNADS network or RSCS.
�job class: Any one of a number of job categories that can be defined.
�job class group: A named collection of resources associated with a job class. Use of job class names on control statements is a way of specifying what resources will be needed for jobs.
�job classification: In performance, the process of identifying how jobs that are running on the system are grouped into workloads. Files created during this process can be used again to analyze data from different intervals.
�job control: A facility that allows a user to stop a process and resume it later.
�job control authority: A special authority that allows a user to: change, delete, display, hold, and release all files on output queues; hold, release, and clear job queues and output queues; start writers to output queues; hold, release, change, and end other users' jobs; change the class attributes of a job; end subsystems; and start (do an IPL of) the system.
�job control language (JCL): A command language that identifies a job to an operating system and describes the job's requirements.
�job control routine: A routine that is used to create a controlling job, which invokes and runs other jobs.
�job control statement (JCS): A statement in a job that identifies the job or describes its requirements to the operating system.
�job control table (JCT): A table into which one entry is placed for each job that JES3 is to process. Entries are arranged in the JCT in job priority order to facilitate later job selection by priority.
�job date: The date associated with a job. The job date usually assumes the system date, but it can be changed by the user.
�job description: A system object that defines how a job is to be processed. The system-recognized identifier for the object type is *JOBD.
�Job Entry Control Language (JECL): A problem-oriented language used to define job statements to an operating system's job entry subsystem (JES).
�Job Entry Subsystem (JES): An IBM licensed program that receives jobs into the system and processes all output data that is produced by jobs. See also JES2, JES3.
�job header: A page in printed output that indicates the beginning of a user job. A user job can contain one or more data sets, or one or more copies of a print job. See also data set header.
�job ID: An 8-character identifier that uniquely identifies any job in a complex at any particular time.
�job log: A record of requests submitted to the system by a job, the messages related to the requests, and the actions performed by the system on the job. The job log is maintained by the system program.
�job management console: A stand-alone Web interface that Compute Grid users use to perform job operations. Through the console, jobs can be submitted, monitored, viewed, and managed.
�job message queue: A message queue that is created for each job. A job message queue receives requests to be processed (such as commands) and sends messages that result from processing the requests. A job message queue consists of an external message queue and a set of program message queues.
�job name: The name of the job as identified to the system. For an interactive job, the job is assigned the name of the workstation at which the job was started; for a batch job, the name is specified in the command used to submit the job. See also qualified job name.
�job number: A number assigned to a job as it enters the system to distinguish it from other jobs.
�job output element (JOE): Information that describes a unit of work for the JES output processor and represents that unit of work for queueing purposes.
�job priority: A value assigned to a job that, together with an assigned job class, determines the priority to be used in scheduling the job and allocating resources to it. (D)
�job queue: An object that contains a list of batch jobs waiting to be processed by the system. The system-recognized identifier for the object type is *JOBQ.
�job queue element (JQE): A control block containing a summary of information from a job control table (JCT) entry. JQEs move from queue to queue as work moves through each stage of processing. JQEs are used instead of JCT entries for the scheduling of work.
�job run: An object in the metadata repository that represents the metadata that is collected when you run a DataStage job
�job schedule: An object that contains entries for jobs to be submitted at a specified time and date. These job schedule entries can also be used to schedule recurring jobs. The system-recognized identifier for the object type is *JOBSCD.
�job schedule entry: An entry in the job schedule object that describes the job to be submitted. The user can specify attributes of the job and when the job will be submitted.
�job schedule function: A function of the operating system that allows time-dependent scheduling for batch jobs.
�job scheduler: (1) A program used to automate certain tasks for running and managing database jobs.; (2) The IBM licensed program that is a job scheduling system designed to allow unattended operations, to automate operator functions, and to control report distribution.
�job script: A pre-defined file similar to a shell script that contains the options required to run a print job.
�job segment scheduler (JSS): A dynamic support program (DSP) that selects scheduler elements that are ready for processing and then builds corresponding entries in the function control table (FCT).
�job selection rule: A method that determines which print jobs IP PrintWay extended mode selects to print. The administrator defines job selection rules in the Printer Inventory.
�job separation: The ability to identify job boundaries by placing marks or sheets of paper between successive jobs.
�job separator page: A page of printed output that delimit jobs.
�job sequence: A design element that specifies a sequence of jobs to run and actions to take depending on the results.
�job step: The execution of a computer program explicitly identified by a job control statement. A job may specify that several job steps be executed. [A]
�job step task: The task that is created as a result of the execution of a job control statement.
�job stream: A sequence of jobs. The sequence depends on one job completing before another job starts.
�job summary table (JST): A table that contains requirements for job setup.
�job trailer: A page in the printed output that indicates the end of a user job.
�job validation: The process during initialization in which JES3 examines the job-related spool control blocks to verify their validity. If JES3 identifies incorrect control blocks, the system operator can take corrective action to insure that initialization is completed.
�job volume table (JVT): A table that contains volume information obtained from data definition (DD) statements.
�JOE: See job output element.
�join: (1) An SQL relational operation that allows retrieval of data from two or more tables based on matching column values. See also equijoin, full outer join, inner join, left outer join, outer join, right outer join, star join.; (2) The configuration on an incoming link that determines the behavior of the link.; (3) A process element that recombines and synchronizes parallel processing paths after a decision or fork. A join waits for input to arrive at each of its incoming branches before permitting the process to continue.; (4) In UML diagrams, a node that models two or more flows of control that unite into a single flow.; (5) To become a new member of an entity such as a cluster.
�join condition: A condition that determines whether to run the next activity.
�join directive: The set of rules that define how to handle attributes when two or more provisioning policies are applied. Two or more policies might have overlapping scope, so the join directive specifies what actions to take when this overlap occurs.
�joined table: An intermediate result table that is the result of either an inner join or an outer join.
�join failure: A fault that is thrown if a join condition cannot be evaluated.
�join field: A comparison field that identifies records from two files to be combined into one record.
�join level specification: For a join logical file, a data description specification coded between the record and field level that defines how to join two physical files.
�join logical file: A logical file that combines (in one record format) fields from two or more physical files.
�join test: A condition that determines how files and record formats are joined for use in a query.
�jointly managed devices: A special case in which the same device is both a JES3-managed device and an MVS-managed device. Only direct-access devices with volumes that cannot be physically removed can be jointly managed devices. See also JES3-managed device.
�Joint Photographic Experts Group (JPEG): (1) A group that worked to establish the standard for the compression of digitized continuous-tone images.; (2) The standard for still pictures developed by this group.
�journal: (1) A system object where changes made to data are recorded. The object created contains historical information about tasks, the database, messages, and notifications, which can be used to reconstruct a previous version of the data. The system-recognized identifier for the object type is *JRN.; (2) A chronological record of changes made in a set of data; the record can be used to reconstruct a previous version of the set.; (3) The destination pages from which a user can view all available historical information about tasks, the database, messages, and notifications.; (4) A feature of OS/400 that WebSphere MQ for iSeries uses to control updates to local objects. Each queue manager library contains a journal for that queue manager.
�journal code: A one-character code in a journal entry that identifies the category of the journal entry. For example, F identifies an operation on a file, R identifies an operation on a record, and so forth.
�journal control: The ability for the CICS user to write CICS journal records when required by the application for auditing purposes.
�journal control table (JCT): A table that contains a description of the CICS user journals along with their access characteristics.
�journaled file system (JFS): (1) The native file system in the AIX operating system.; (2) A technology designed for high-throughput server environments, which are important for running intranet and other high-performance e-business file servers.
�journal entry: A record in a journal receiver that contains information about a journaled change or other activity that is journaled.
�journal entry type: A two-character field in a journal entry that identifies the type of operation of a system-generated journal entry or the type of journal entry of a user-generated journal entry; for example, PT is the entry type for a write operation.
�journal identifier (JID): A unique identifier that is assigned to a particular object when journaling is started for that object. Journal entries are associated with a particular object by this JID value.
�journaling: The process of recording, in a journal, the changes made to objects, such as physical file members or access paths, or the depositing of journal entries by system or user functions.
�journal key: A key used to identify a record in the journal.
�journal receiver: For System i models, a system object that contains journal entries that are added when events occur to a journaled object, such as changes to a database file, changes to other journaled objects, or security-relevant events. See also event.
�journal service: A MERVA central service that maintains the journal.
�JPEG: See Joint Photographic Experts Group.
�JQA: See artificial JQE.
�JQE: See job queue element.
�JRas: A toolkit that consists of a set of Java packages that enable developers to incorporate message logging and trace facilities into Java applications.
�JRE: (1) See Java runtime environment.; (2) See Java Runtime Environment.; (3) See Java SE Runtime Environment.
�JSAM: See JES3 spool access method.
�JSF: See JavaServer Faces.
�JSF widget library: A JavaServer Faces (JSF) and JavaScript-based widget library, included in the product, that augments JSP and HTML pages with a rich set of input, output and navigation components.
�JSON: See JavaScript Object Notation.
�JSP (JSP): See JavaServer Pages.
�JSP file: A scripted HTML file that has a .jsp extension and allows for the inclusion of dynamic content in Web pages. A JSP file can be directly requested as a URL, called by a servlet, or called from within an HTML page. See also JavaServer Pages, JSP page.
�JSP page: A text-based document using fixed template data and JSP elements that describes how to process a request to create a response. (Sun) See also JavaServer Pages, JSP file.
�JSR: See Java Specification Request.
�JSR 101: See Java API for XML-based RPC.
�JSS: See job segment scheduler.
�JSSE: See Java Secure Socket Extension.
�JST: See job summary table.
�JSTL: See JavaServer Pages Standard Tag Library.
�Julian date: A date format that contains either a 2-digit year in positions 1 and 2 or a 4-digit year in positions 1 through 4, and the day in the following 3 positions. The day is represented as 1 through 366, right-adjusted, with zeros in the unused high-order positions. For example, the Julian date for 6 April 1987 is 1987096 or 87096.
�jump: In the running of a computer program, a departure from the implicit or declared order in which instructions are being run.
�jumper: (1) A small piece of plastic-covered metal that is used to connect two contacts and complete a circuit.; (2) A connector between two pins on a network adapter that enables or disables an adapter option, feature, or parameter value.
�jumper cable: See patch cable.
�jump out: See call transfer.
�junction: (1) In the Distributed Computing Environment (DCE), a specialized entry in the DCE namespace that contains binding information to enable communication between different DCE services.; (2) A logical connection created to establish a path from one server to another.; (3) An HTTP or HTTPS connection between a front-end WebSEAL server and a back-end Web application server. WebSEAL uses a junction to provide protective services on behalf of the back-end server.; (4) A special directory entry that connects a name in a directory of one fileset to the root directory of another fileset.
�JUnit: An open-source regression testing framework for unit-testing Java programs.
�jurisdiction: A geographical region for tax or shipping purposes representing a country or region, province or territory, zip or postal code range, or an application-specific geo-code. See also geo-code.
�justify: To align text so that the margins are even
�Just-In-Time compiler (JIT compiler): In Java, a specific compiler that converts Java bytecodes into specific code at run time for better performance.
�JVM: See Java virtual machine.
�JVMPI (JVMPI): See Java Virtual Machine Profiler Interface.
�JVT: See job volume table.
�Jython: An implementation of the Python programming language that is integrated with the Java platform.

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