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 request/response interaction model is not always adequate for communicating in both highly dynamic, and low bandwidth, networks. To overcome this limitation, we propose the seamless incorporation of software mobility with service-oriented computing to provide a powerful framework for service-oriented architectures to benefit from the advantages of the mobility paradigm. We instantiate the model as a middleware for the mobility of Java computations in Web service environments, and present some programming examples that illustrate the expressiveness of the proposed API. This middleware is currently being successfully used in the development of other service-oriented architectures, namely in the field of dynamic Web service architectures.