Process based composition of web services for support of flexible and scalable educational applications

Service oriented architecture brings new view on composing web services. Together with cloud it became strong tool for composition. In recent years from variety of options became very popular composition of Software as a Service (SaaS) applications based on business workflows. In this paper, we studied different kinds of web service composition and we focused on business processes. Our goal was to propose and verify an integration architecture that is process-based and enables composition of web services used in educational processes in order to achieve flexible and scalable application deployable in the cloud environment. We validated proposed integration architecture in a system for submitting and evaluating of programming assignments that is deployed as a SaaS application into cloud environment.