Building Interoperable Web Services: WS-I Basic Profile 1.0 is intended to help software architects and developers design and code Web services that are interoperable. We emphasize "interoperable" because we assume that you already understand how to implement a Web service. Our goal is to show you how to ensure that your Web service will work across multiple platforms and programming languages and with other Web services. Our philosophy is that you can best achieve interoperability by adhering to the guidelines set forth by the Web Services Interoperability (WS-I) organization in their Basic Profile version 1.0. In this book, we will show you how to write Web services that conform to those guidelines. Focusing on interoperability means there are some Web service issues that fall outside the scope of the discussion. These issues include security, performance optimization, scalability, and bandwidth conservation.