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Introduction

A primary purpose of web services is to interoperate with other services, regardless of the platform on which they are running or the language in which they are implemented. While the WS-* specifications go a long way toward describing platform-independent mechanisms for message exchange, the devil is in the details. As with any specification, there are many areas of the WS-* specifications that are open to interpretation, and there are a numbers of questions to which vendor platforms must determine the answers themselves. The specifications for XML, SOAP, and WSDL were written independently of one another, and therefore have minor gaps and overlaps between them. Moreover, developers are free to implement serv....


  

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