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Oct 27, 2015 at 12:37 PM

Best Practices for customizable Business Rules?

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In a recent project, I finally had the opportunity to try out BRF+. With the help of several articles and on-line tutorials, I was able to create an application with a function and several other objects, generate the template code and integrate it into the remaining ABAP application. So far so good.

What I want to achieve next is a better separation of the rule set from the application. At the moment, the application code contains a hard-coded UUID that refers to the BRF+ function (and actually a second UUID for the import data object). This is OK as long as that application and the BRF+ function are always used in that combination. When delivering the application to another system landscape or another customer, this might not be we need: The other customer will have different business rules. At the moment, the only way to implement these rules would be to modify "our" BRF+ application, which is undesirable (especially since with every subsequent transport, there's a risk of overwriting the BRF+ objects again).

What is the recommended way to approach this? At the moment, all I can think of is some kind of customizing table that lets the customer specify another BRF+ application. However, this raises another set of questions: Can I somehow specify function names instead of (rather cumbersome) UUIDs? What do I do about the data object UUIDs? How do I ensure that the customers function has the same signature (input and output structure) so that I don't have to worry about runtime compatibility? Somehow I think that there should be something more sophisticated than a simple customizing table, but I don't know what to look for, exactly...

Thanks

Volker Wegert