Web Services Composition Using UML-S: A Case Study

As Web services composition arouses a growing interest, most research works address implementation and execution issues. As a consequence, many composition languages BPEL, XLANG, WSFL, and WSCI, to name a few of them have been proposed in the past few years. However, a weakness of these languages is that they are difficult to use in early stages of development, such as specification. UML-S is an extension to UML 2.0 that was introduced to address this issue. UML-S allows for a Model Driven Engineering (MDE) of Web services and their interactions. In this paper, composite Web service development using UML-S will be described through a case study.