Rules Function › Overview › How is the Rules Function Used? › Procedure for Using the Rules Function

Procedure for Using the Rules Function

Follow these steps:

1. Review the expected application changes.
2. Determine which of these changes will produce screen changes in your existing test streams (for example, a field was added, a field was moved, a title has been changed, a new screen was added, or an existing screen was removed).
3. Establish a ruleset. This ruleset notifies CA Verify for VTAM that you are expecting certain changes and specifies how to handle them.

   To establish a ruleset, you must:

   1. Invoke the Rules function.
   2. Select Add a Ruleset to create a new ruleset.
   3. Add rules to the ruleset.
   4. Add rule actions to the rules. Recognition criteria and modeling are optional.

      While defining rules, calculating the exact coordinates of a field within a panel can be very time consuming. You can allow CA Verify for VTAM to automate this calculation for you by using the modeling feature of the Rules function. The modeling feature can be used wherever rule actions are specified. This feature takes the guesswork out of the placement of the fields on a panel by allowing CA Verify for VTAM to fill in the placement values for you.

4. Run the test stream. CA Verify for VTAM will recognize which screens need to be changed, automatically make the substitutions, and add or delete fields as specified in the rules without interrupting the run.