Enhancing Service-Oriented Computing with Software Mobility

Service-oriented computing has emerged as a consensually accepted paradigm for the implementation and integration of distributed systems in heterogeneous environments. However, its basic client/server interaction model is not adequate for communicating in both highly dynamic and low bandwidth networks. In this paper we propose the seamless incorporation of mobility with service-oriented computing to provide a powerful framework for service-oriented architectures to benefit from the advantages of the software mobility paradigm. We instantiated the model as a middleware for the mobility of Java computations in Web service environments, and present some programming examples that illustrate the use of the API and its expressiveness. This middleware is currently being successfully used in the devel- opment of other service-oriented architectures, namely in the field of dynamic Web service architectures.