BackCover

Back Cover

• Presents a technology-agnostic approach that focuses on building Web services-based applications around established open standards
• Provides plenty of examples, illustrations, and code to help the reader not only understand Web services but start implementing them right away

Architecting Web Services is targeted at developers and technical architects who have heard about, and even started to work with, Web services. The book starts with a background on the evolution of Web services and their significance to future collaborative efforts via the Internet. It then reveals the architecture for Web services and the various relationships that can be established through their consumption.

Following a short technical primer on XML and related technologies, the Web services model is outlined to illustrate the decisions that have to be made in the areas of presentation, interface, and security before the design is even started. Topics ranging from content to state management to system infrastructures are discussed to help the reader establish an understanding of the options and the pitfalls that can occur when developing robust Web services.

The lifecycle of implementing Web services from start to finish is illustrated, taking existing processes and exposing their functionality through Web services. Examples extend both Java and COM objects as Web services before exposing an entire hotel reservation system through a Web services workflow. These exercises are followed by three application scenarios that consume these Web services, again with both Java and Visual Basic/ASP examples. Discussions cover the design, implementation, and testing of solution to ensure a successful result. Finally, the book takes a look ahead at the future of Web services by examining both the current strategies of the primary vendors and the standards initiatives that are presently underway.

About the Author

William L. Oellermann, Jr. is a software architect with more than nine years of experience in the IT industry in corporate and consulting capacities. He has worked extensively with XML, and Web-based applications in enterprise settings ranging from integration to e-commerce at Fortune 500 companies. Having earned a B.S. in Computer Science from the University of Texas at Dallas and having grown up professionally with the Internet, William has a balanced background that makes him well suited to recognize the value of software engineering while embracing the potential of the Web.