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What is SOAP?

EXPERT RESPONSE FROM: David Linthicum

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QUESTION POSED ON: 07 February 2002
What is SOAP?

Simple Object Access Protocol, or SOAP, is an XML-based protocol for invoking RPCs through firewalls. SOAP uses a method-invocation mechanism where return values are carried as HTTP requests and responses, allowing the protocol to operate through firewalls. Information about the methods being carried out is placed into the HTTP header and body, and carried over the network. SOAP leverages an XML-based document for encoding the operational details.

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