What Is SOAP?
SOAP is a lightweight communication protocol based on the eXtensible Markup Language (XML). It allows applications and components to exchange data. As mentioned in the introduction, SOAP currently relies on HTTP as a transport protocol, but could use any reliable transport protocol to transfer data. In addition, SOAP is useful for many data transfer needs, including LANs, WANs, and MANs—it’s not just for the Internet.
Note
 | Learning XML is an essential part of learning SOAP. You don’t have to become an XML guru, but knowing the basics is a requirement. Many XML Web sites offer tutorials and other information about this technology. ... |
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