Book excerpt: CodeNotes provides the most succinct, accurate, and speedy way for a developer to ramp up on a new technology or language. Unlike other programming books, CodeNotes drills down to the core aspects of a technology, focusing on the key elements needed in order to understand it quickly and implement it immediately. It is a unique resource for developers, filling the gap between comprehensive manuals and pocket references. CodeNotes for Web Services in Java and .NET examines the core specifications and technologies required for building SOAP-based web services in both Java and .NET. Not only will you find descriptions of SOAP, WSDL, and UDDI; you will also see how to use each of these specifications with Java and .NET. In addition, you will find specific sections on cross-language and cross-platform compatibility between web services. This edition of CodeNotes includes: • A global overview of this technology and explanation of what problems it can be used to solve • Real-world examples • “How and Why” sections that provide hints, tricks, workarounds, and tips on what should be taken advantage of or avoided • Instructions and classroom-style tutorials throughout from expert trainers and software developers