Installing and use Oracle Business rules engine

Just a starting point

http://download.oracle.com/docs/cd/B31017_01/hpitan.1013/relnotes/rules.htm

http://www.it-eye.nl/weblog/2006/12/01/how-to-install-oracle-business-rules-standalone-using-oc4j/

http://download.oracle.com/docs/cd/B31017_01/web.1013/b28965.pdf