Handling Semantic Conflicts in DaaS Composition: A Service Mediation Approach

In the domain of DaaS
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, completing a query means calling many services which are heterogeneous and built independently from the context in which they will be used. This heterogeneity leads to several compatibility problems during DaaS composition. In order to solve them, we propose a semantic description model which allows context characterization. The proposed model enables data mediation in the composition for resolving the conflicts caused by heterogeneities between DaaSs. We rely on two-layered mediated ontology for deriving automatically DaaSs compositions that incorporate necessary mediation services. A preliminary evaluation has been performed based on our initial investigation leading to better improvement.