Decision Management Systems: Rules and Analytics

Business Rules and Predictive analytics from SAP.   Link to an excerpt from a forthcoming book that I am looking at now.  This topic has been much in my mind of late.  We know that business process is delivered by rules,  precise or imprecise.  But how can predictive analytics be driven by these very same rules?    A cause for simulation via agents?     Don't know yet if that is covered, but I will explore.