Implementing Service-Oriented Architectures for Enterprise Integration

Abstract

We have introduced the idea of Service-Oriented Architecture (SOA) a number of times in earlier chapters, and we now explore the subject in a more focused and specific way. SOA, in general, and its latest incarnation in cloud computing have become dominant factors in contemporary information technology. Our primary objective is to give system architects and engineers a sufficient grounding in SOA principles and practices to allow them to effectively incorporate services in systems and enterprises and a starting point for more in-depth study of this complex and rapidly evolving technology. First, we present the fundamental concepts of services and a service-oriented style of architecture. We then lay out the essential foundation of SOA concepts and the building blocks with which a SOA is erected. SOA projects have been reported to have failed due to faulty strategy and planning, and we discuss important aspects of preparing and executing service-enabled solutions. We consider practical aspects of SOA implementation. Recognizing that SOA is intimately related to the constantly changing World Wide Web, we briefly summarize in Sect. 7.5 the trends and expected future evolution of the Web. This is followed by a summary of the current Web Services Framework. Finally, we return to MBSAP and present specific techniques for service modeling, using the Smart Microgrid system example that gives an illustration. Chapter objective: the reader will be able to apply the MBSAP methodology to the definition, planning, modeling, and implementation of service-enabled systems and enterprises, including SOA structures and elements and the most important service standards and specifications.