Relying on a business behavior buried in several million lines of convoluted program code exposes the business to the risk of a serious discrepancy between its documented and actual behaviors. Logic Tools addresses this risk by expressing the essence of your organization. The most sophisticated systems are described by a few hundred artifacts, several orders of magnitude less than the corresponding functionality expressed in any common programming language. This makes for the most compact, understandable, auditable, verifiable and yet executable representation of any application domain. Keywords: Ontology, Semantics, Logic, Business Rules