What is SOAP?

SOAP is an XML message format used in web service interactions. SOAP messages are typically sent over HTTP or JMS, but other transport protocols can be used. The use of SOAP in a specific web service is described by a WSDL definition.

There are two versions of SOAP in common use: SOAP 1.1 and SOAP 1.2. Both are supported in IBM® Integration Bus. SOAP is defined in the following documents issued by World Wide Web Consortium (W3C):
Support for SOAP in IBM Integration Bus includes:
WSDL validation in IBM Integration Bus refers to the WS-I Basic Profile. For more information, see the WS-I, and in particular the WS-I Basic Profile document: