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WS-I Basic Profile

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The WS-I Basic Profile (official abbreviation is BP), a specification from the Web Services Interoperability industry consortium (WS-I), provides interoperability guidance for core Web Services specifications such as SOAP, WSDL, and UDDI. The profile uses Web Services Description Language (WSDL) to enable the description of services as sets of endpoints operating on messages.

To understand the importance of WSI-BP, note that it defines a much narrower set of valid services than the full WSDL or SOAP schema. Many common platforms (listed below) support WSI-BP but do not support services outside of it. Compare the WSDL 1.1 specification to the subset permitted in WSI-BP. Also note that WSI-BP generally narrows the SOAP specification. There is a notable exception where WSI expands on the SOAP standard, and that is in adding xml:lang attribute on fault elements.


  • Version 1.0 of this profile was released in early 2004.
  • Version 1.1 published in 2006 does not have the same scope as version 1.0. The part of version 1.0 dealing with serialization of envelopes and their representation in messages has been moved to a new profile called Simple Soap Binding Profile (SSBP)
  • Version 1.2 was finalized in November 2010. The main new features are the support for MTOM binary attachments and WS-Addressing
  • Version 2.0 was also published in November 2010. It uses SOAP 1.2, UDDI 3 and WS-Addressing

Compliant framework[edit]

Here is a list of frameworks claiming to be compliant with this profile :

External links[edit]