How is the Rules Function Used?

There are two situations in which rules are used:

During Logging
Logging rules are used to control what is logged. Using the Rules function, you can create lists of user IDs, terminals, or transaction IDs that can be included or excluded while logging. For details on this Rules function capability, see the chapter "Log Function".
During a Run
Run rules are used to manipulate a test stream for known application changes. You can define these rules during a run or before a run begins.

A ruleset is run with a particular test stream to dynamically identify specified changes during runtime—allowing your test stream to run more smoothly and efficiently. For example, a common change within an application is to upgrade its release number. Using a ruleset, you can identify this change once, tell CA Verify for CICS how to handle the release number discrepancy whenever it is encountered, and then forget about it. CA Verify for CICS will then interrupt your test stream only for true exceptions.