Decentralized Establishment of Consistent, Multilateral Collaborations

Service Oriented Architecture (SOA) support decentralized and loosely coupled applications. In particular, parties make functionality available as a service, which is maintained and controlled independent of a centralized coordinator. Further, loose coupling supports late binding of services, i.e., a service requestor may decide at run-time which service provider to use for that particular collaboration. As a consequence of these decentralized decisions and the lack of a centralized coordinator, a decentralized decision has to be made whether the composed collaboration will be successful, thus will not be deadlocked. In this book a formal workflow model for checking bilateral consistency in a composed collaboration is presented. This approach is extended to multi-lateral consistency checking without centralized coordination. Further, the approach is evaluated by applying the workflow model in the Web Service domain.

Autorentext

Andreas Wombacher is an assistant professor at University Twente.He received his Ph.D. degree at Technical University ofDarmstadt. He gathered professional experiences at IBM (Germany),Fraunhofer Gesellschaft (Germany), and EPFL (Switzerland). Hisresearch interests are in the area of SOA, distributed datamanagement, and workflow management.