SOA represents an abstract architectural concept. It's an approach to building software systems that is based on loosely coupled components (services) that have been described in a uniform way and that can be discovered and composed. A Web service represents one important approach to realizing an SOA. This chapter, excerpted from Web Services Platform Architecture focuses on Web services as a realization of the service-oriented platform and introduces the specifications that add to it.
Click here to read the rest of Web Services: A Realization of SOA (PDF)
About the Book
Web Services Platform Architecture is an essential resource for those interested in learning about the structure and composition of the Web services platform. The authors identify the key components of service-orientation and they fit into the world of Web services. They also take a closer look at a variety of key technical and non-technical issues and their implications. A series of real life examples and case studies has also been included.
About the Authors
Sanjiva Weerawarana, Ph.D., Research Staff Member for the component systems group at IBM Research, helps define and coordinate IBM's Web services technical strategy and activities. A member of the Apache Software Foundation, he contributed to many specifications including SOAP 1.1 specifications and built their first implementations.
Francisco Curbera, Ph.D., IBM Research Staff Member and component systems group manager, coauthored BPEL4WS, WS-Addressing, and other specifications. He represents IBM on the BPEL and Web Services Addressing working groups.
Frank Leymann, Ph.D., directs the Institute of Architecture of Application Systems at the University of Stuttgart. As an IBM distinguished engineer, he helped architect IBM's middleware stack and define IBM's On Demand Computing strategy.
Tony Storey, IBM Fellow, has helped lead the development of many of IBM's middleware, Web services, and grid computing products.
Donald F. Ferguson, IBM Fellow, is chief architect and technical lead for IBM Software Group, and chairs IBM's SWG Architecture Board.
Note: Reproduced from Web Services Platform Architecture, ISBN 0131488740. Copyright 2005 with permission from Pearson publishing as Prentice Hall.