Process Mediation of OWL-S Web Services

Abstract

The ability to deal with incompatibilities of service requesters and providers is a critical factor for achieving smooth interoperability in dynamic environments. Achieving interoperability of existing web services is a costly process including a lot of development and integration effort which is far from being automated. Semantic Web Services frameworks strive to facilitate flexible dynamic web services discovery, invocation and composition and to support automation of these processes. In this paper we focus on mediation and brokering mechanisms of OWL-S Web Services which we see as the main means to overcome various types of problems and incompatibilities. We describe the process mediation component and the hybrid broker component that present two different approaches to bridge incompatibilities between the requester’s and provider’s interaction protocols.