WP5: Service Mediation D5.2 Mediation Module Specification: Business Data-Level Mediation

for dissemination) The objective of this deliverable has been a specification for a data-mediation component. The data mediation task is hereby considered a translation of messages and related instance data between two parties (e.g. a WS requester and a provider), using different WSML ontologies. Two phases of datamediation are considered: human-aided design-time mediation specification; and automatic run-time mediation execution in the course of WS usage. The high-level design-time task is to create a WSMO ooMediator, which can mediate between a source and a target ontology. There are two sorts of mediation that can be singled out: semantic (based on ontology-mapping) and syntactic. An overall mediation approach is presented, followed by short descriptions and references to the related ontology mapping language and components. One of the concrete contributions is a proposal for generation of a syntactic (XSLT) transformation out of the ontology mappings.