Logic-based Knowledge Different from Factual, Procedural

http://msdn.microsoft.com/en-us/library/aa480020.aspx

Facts (e.g. data in a database retrieved via CRUD) and procedures are good fit for computers and typical programming languages. But there's a "semantic gap" when it comes to knowledge which is better coded using rules engines.

So much for business logic being intrinsic to OOP domain objects?