Popular author Jeffrey Hasan will draw you into the service-oriented architecture (SOA) mindset, in the context of the release of Indigo--the new Web services protocol and infrastructure support for SOA. Now is the time to consider SOA and to think about how to architect applications using XML messages and loosely-coupled services. With this book, you can get a head start on building SOA applications, using the .NET Framework combined with the Web Services Enhancements (WSE) 2.0 toolkit. Web services are hot, and with the release of WSE 2.0, Microsoft developers now have a toolkit that makes it easy to implement industry-standard specifications for building secure, reliable Web services. This book provides deep insight into the release of the WSE toolkit: blending theory with ample C# code samples, and directly teaching you how to implement SOA solutions that are based on specifications such as WS-Security, WS-Policy, and WS-Addressing. Most .NET-based Web services are simply containers for limited RPC-style methods. This book will show you how to shift your development paradigm to create Web services that process sophisticated XML messages within a secure, service-oriented, loosely-coupled architecture. Jeff gives you the practical information you need today, while at the same time preparing you for what you will need tomorrow. Table of Contents Introducing Service-Oriented Architecture The Web Services Description Language Design Patterns for Building Message-Oriented Web Services Design Patterns for Building Service-Oriented Web Services Web Services Enhancements 2.0 Secure Web Services with WS-Security Use Policy Frameworks to Enforce Web Service Requirements with WS-Policy Establish Trusted Communication with WS-Secure Conversation Design Patterns for SOAP Messaging with WS-Addressing and Routing Beyond WSE 2.0: Looking Ahead to Indigo