Report on the Combined Metamodel

UML-based models and OWL ontologies constitute modeling approaches with di erent strengths and weaknesses that make them appropriate for use of specifying di erent aspects of software systems. Though MOF based metamodels and UML pro les for OWL have been proposed in the past, an integrated approach of both modeling approaches in a coherent framework has been lacking so far. This deliverable presents a framework involving the integration of existing metamodels and pro les for UML and OWL modeling, including relevant (sub)standards such as OCL and considering newer developments such as SWRL, a weaving metamodel and an UML pro le for developing integrated models. We start covering the usage scenarios and use cases for the application of ontologies and software technologies. The usage scenarios are scrutinized to identify uses cases. The use cases are detailed and mapped onto the usage scenarios. State of art OWL metamodels and UML-based metamodels are analyzed and reference models are proposed. Subsequently, an integration between both reference models is described. We exemplify a concrete integration with the TwoUse approach.