Modeling of Service-Oriented Architecture: Integration of Business Process and Service Modeling

This article addresses issues of the Service-Oriented Architecture Modeling (SOAM). SOAM comprises gathering requirements, analyzing the requirements to identify services and business processes, and finally implementing the services and processes. It is a heterogeneous approach that combines a number of well-established practices. The key question in SOAM is how to integrate these practices to model a true service-oriented system with all its benefits and requirements. The approach presented in this paper is a way to the integration of Business Process Modeling and Service Modeling. It is achieved by using a transformation method that transforms business processes diagrams into services diagrams. The generated service diagrams describe how the process is realized using services. Particularly, the method transforms diagrams modeled by means of the Business Process Modeling Notation into a set of UML diagrams. Furthermore, the formal description of the transformation is presented in this proposal. The principle of the transformation method is demonstrated in a case study.