Self-integration of web services in bpel processes

Abstract. Interoperability between clients and service may not be seen as a major challenge in SOAs but in reality services under change impose a ma-jor hindrance in service management. We present a model and system for ser-vice process management where we achieve self-integration by automatic mes-sage matching and runtime transformation. We have developed the necessary WSDL schema extension, a semantic discovery algorithm, and a runtime me-diation system. Our matching algorithm can detect semantically related message elements and generate appropriate XSL transformations. Finally our system dy-namically instantiates mediators to bind services to service processes specified with BPEL4WS.