Chapter 4. Accessing Web Services: SOAP

The Simple Object Access Protocol (SOAP) is perhaps the most significant of all Web services technologies. True, Web services wouldn't exist without a way to abstractly represent the data and publish the interface definitions, but SOAP accomplishes arguably the most important aspect of Web services: getting the data from one place to another over the network.

With the Web emerging as the world's premier network and XML emerging as the world's premier data representation format, it makes sense that Web services data transport requires a combination of the two. This is exactly what SOAP provides. SOAP allows the sender and the receiver of XML documents over the Web to support a common data transfer protocol ...

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