Versioning

Because dynamic business rules can be edited at run time, they are versioned. This allows the user to revert to an earlier version if a newly edited one does not work as expected.

Version Numbers

Every time a business rule is edited, the business rules version is incremented. Business rules are not versioned individually. Rather, there is a single version number for the whole set of rules in the project. Hence, if you have two business rules A and B, and you edit rule B three times and rule A twice, your version numbers may look like those shown below:

Version number	Rule Edited
1	A
2	B
3	B
4	A
5	B

In this way, the rule A will be available in versions 1 and 4, while rule B will be available in versions 2, 3, and 5. WorkSpace users are able to select any available version of a given rule in the WorkSpace business rules editor.

Rule Compatibility Checking

At run time, every time a rule needs to be evaluated, the first (most recent) compatible version of it is fetched from the Directory Database. A compatible version of a business rule is a version which accesses project variables and business parameters that exist in the project and have the type expected by the rule.

If no compatible rule is found, the rule that was originally published with the current project version is used. In other words, none of the versions of the rule edited at run time are used. This is a fail-safe mechanism so that a new version of the process will be able to run even when previously edited (and no longer compatible) rules are present.