Business Process Modeling, REA Value Chain, REA Ontology, Controlling and Controlled Process

In the current REA value chain model, only flows of resources at the operational level of the process models can be utilized. This fact considerably eliminates activities whose basis lies rather at the policy level (meta-level) such as planning, controlling and monitoring. To cope with the issue the paper designs means how to adopt REA value chain model to be able to effectively comprise the flows of entities between both the operational and policy level. This approach comes out form the current REA value chain and is generalized into the notion of controlling and controlled REA process models. Proposed solution not only helps to clear up relationships between different REA process models but also contributes to direct integration of acquisition and sales (revenue) REA process models. In the closing part, the paper examines possibilities of utilizing REA value chain in supply chain.