Prerequisite Condition Concept in control-m

Prerequisite Condition Concept

The prerequisite condition concept is one of the key concepts of
CONTROL-M production control.

Prerequisite conditions enable the establishment of job dependencies and,
when a job normally requires manual intervention, such as determination that
a cartridge arrived on-site, ensures that the manual conditions are satisfied
before the job is submitted.

A prerequisite condition is a user-defined, descriptive name given to a certain
situation or condition. Prerequisite conditions may be specified in any of
three types of statements in a job scheduling definition:


Prerequisite Condition Statements

Statement Description


IN statements These statements must be satisfied (that is, the prerequisite
condition must exist) before the job can be submitted.

OUT statements These statements are performed, that is, the prerequisite
conditions are added or deleted, only when the job ends OK.

DO COND statements
Whether these statements are performed (that is, the
prerequisite conditions are added or deleted) depends on the
execution results of the job.

DO statements in a job scheduling definition accompany ON
statements. The ON statements define step and code criteria.
If the specified code criteria are satisfied for the specified
steps, the accompanying DO statements are performed.