Chapter 11. Web Services

Read any book, paper, or magazine article about Microsoft .NET and you’ll encounter one term over and over: “XML Web services.” XML Web services, or simply "Chapter 11" as they are more often called, are the cornerstone of the Microsoft .NET initiative. They’re the key to Microsoft’s vision of a world in which computers talk to each other over the Web using HTTP and other universally supported protocols. And they’re the number one reason that the Microsoft .NET Framework exists in the first place—to make it as easy as humanly possible to build Web services and Web service clients.

A Web service is a different kind of Web application. It doesn’t have a user interface as does a traditional Web application. Instead, it exposes ...

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