Transaction class / job class

ASCH
The job class used for work selection.
CB
Name resulting from mapping the URI to a name. For more information, see WebSphere® Application Server for z/OS®: Installation and Customization.
DB2®
The job or transaction class associated with the originator of the query; for example, the job class from JES.
IMS™
The CLASS keyword on the PGMTYPE=parameter in the APPLCNT macro. For more information, see IMS/ESA® System Definition Reference.
IWEB
The arbitrary class name specified in the APPLENV directive in the Webserver's administrative file. Using the filtering function in the webserver, you can assign transactions to transaction classes based on the requested URL. The transaction classes can then be assigned unique service classes using this Transaction Class qualifier. Note that this is probably the most useful qualifier for IWEB work, because of its flexibility.

Note that for the function Fast Response Cache Accelerator for high performance handling of cached static web pages, you must classify work as described in the following paragraph. Otherwise, it will be assigned the default service class for IWEB work.

The transactions handled by the Cache Accelerator are all joined to a single, long-lived enclave. This enclave should be assigned a unique transaction class (as specified on the Webserver FRCAWLMParms directive). This transaction class should then be assigned to a service class with a single period and a velocity goal in the service policy under the IWEB subsystem type. Neither response time goals nor multiple periods are appropriate for this work, as WLM is not aware of the individual Cache Accelerator requests. (Because each individual transaction is so trivial, it would cost more resource to manage them than to just process them.) In RMF™ reports, you will see zero ended transactions for the Cache Accelerator service class (assuming you have no other work running in this service class), but you will see some amount of accumulated service for this single enclave.

JES
The job class used for work selection.
MQ
A value of either ONLINE, meaning that the server is immediately available, or BACKLOG, meaning that the message was queued pending availability of a server.
NETV
The NetView® subtask type. Valid types are: AOST, DST, HCT, MNT, NNT, OPT, OST, and PPT. For more information, see Tivoli® NetView Customization: Using Assembler.