The following terms are used in the description of MVS™ workload management:
- classification rules
- The rules workload management and subsystems use to assign a service
class and, optionally, a reporting class to a work request (transaction).
A classification rule consists of one or more work qualifiers. See Defining classification rules.
- compatibility mode
- A workload management mode for an MVS image in a sysplex using the pre-workload
management MVS performance tuning definitions from the IEAICSxx and IEAIPSxx members
of the SYS1.PARMLIB library.
- goal mode
- A workload management mode for an MVS image in a sysplex using an MVS workload management service
definition to automatically and dynamically balance its system resources according
to the active service policy for the sysplex.
- report class
- Work for which reporting information is collected separately. For example,
you can have a report class for information combining two different service
classes, or a report class for information on a single transaction.
- service class
- A subset of a workload having the same service goals or performance
objectives, resource requirements, or availability requirements. For workload
management, you assign a service goal to a service class. See Defining service classes.
- service definition
- An explicit definition of all the workloads and processing capacity
in a sysplex. A service definition includes service policies, workloads, service
classes, resource groups, and classification rules. See Setting up service definitions for MVS Workload Manager.
- service policy
- A set of performance goals for all MVS images using MVS workload manager in a sysplex. There
can be only one active service policy for a sysplex, and all subsystems in
goal mode within that sysplex process towards that policy. However, you can
create several service policies, and switch between them to cater for the
different needs of different processing periods.
- workload
- Work to be tracked, managed and reported as a unit. Also, a group of
service classes.
- workload management mode
- The mode in which workload management manages system resources in an MVS image
within a sysplex. The mode can be either compatibility mode or goal mode.

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