A Framework for Data and Web Services Semantic Mediation in Peer-to-Peer Based Medical Information Systems

Interoperability is a crucial issue in the health care domain. It must be conducted along two tightly-coupled levels: "data" and "application" levels. The former is about bridging together heterogeneous medical data sources. The later is concerned with enabling medical applications to understand each other when they interact through Web services composition. In this paper we present a peer-to-peer framework for ensuring the interoperability along its two levels. Then we present a semantic mediation model dealing with data's "context heterogeneity" between Web services within a composition process