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Developing Enterprise Web Services: An Architect's Guide by James Webber - Ph.D., Sandeep Chatterjee - Ph.D.

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Summary

SOAP is the protocol that Web services use to communicate. It is an XML-based protocol that specifies a container called an Envelope, which stores application payload in a second container, called the Body, and additional (usually contextual) information inside a third container called the Header. The SOAP specification describes a processing model where application messages (and their associated headers) can pass through intermediary processing nodes between the sender and receiver, where the information stored in the SOAP header blocks can be used by those intermediaries to provide various quality of service characteristics. For example, the headers may contain routing information, transaction context, security credentials, or any other ...

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