Data integration system : Toward a prototype

Date sources integration is one of the major challenges for nowadays enterprise information system. Indeed, because of growing heterogeneous systems, access to information is more and more complex. In this context, we have implemented a prototype of WASSIT, a data integration system based on mediation-adaptation architecture. This paper briefly describes the meta-model ontology used in the integration process of WASSIT. It also describes the prototype implemented features such as rewriting and execution modules.