Model-Driven Development of SOA Services

Service-oriented architectures (SOA) will form the basis of future information systems. Basic web services are being assembled to composite web services in order to directly support business processes. As some basic web services can be used in several composite web services, different business processes are influenced if for example a web service is unavailable or if its signature changes. Yet the range of such a change is often ambiguous due to a missing overall SOA service model pointing out the influence of services on business processes. In this paper we present a SOA service model defined as a UML-based metamodel and its integration into a model-driven service development approach. In contrary to existing approaches we explicitly address deployment issues.