Panel: Beyond webservices-conceptual modelling for service oriented architectures

Abstract

Webservices are evolving as the paradigm for loosely coupled architectures. The prospect of automatically composing complex processes from simple services is promising. However, a number of open issues remain: Which aspects of service semantics need to be explicated? Does it suffice to just model datastructures and interfaces, or do we also need process descriptions, behavioral semantics, and quality of service specifications? How can we deal with heterogeneous service descriptions? Should we use shared ontologies or adhoc mappings? This panel shall discuss to which extent established techniques from conceptual modelling can help in describing services to enable their discovery, selection, composition, negotiation, and invocation.