How to learn more about BRF+? You can find a very good e-book on the:
- BRFplus page in SDN: http://scn.sap.com/docs/DOC-8824?rid=/webcontent/uuid/90754865-f283-2b10-6d9f-b10f3c28c3a0
- or directly here: https://websmp204.sap-ag.de/~sapidb/011000358700000002312012E/index.htm
It provides a general introduction into the idea of business rules, an overview of BRFplus, and a demo how to build business rules from the scratch. Please check it out and use it for your up skilling.
Another good source to learn more about BRF+ could be the following book: