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W3C WSDL Activities

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WSDL is an XML-based language for describing Web services and how to access them.

WSDL

WSDL stands for Web Services Description Language, and is an XML-based language for describing Web Services.

To learn more about WSDL, read our WSDL tutorial.

WSDL 1.1

WSDL 1.1 was suggested in a note to W3C in March 2001 (by Ariba, IBM and Microsoft), as a language for describing Web Services.

The note also described how to use WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME types.

WSDL 1.2

The first working drafts were published 17. December 2001.

The latest working drafts were published 11. June 2003.

WSDL 2.0

WSDL 2.0 became a W3C Recommendation 26. June 2007.

Web Architecture

To preserve the properties of the World Wide Web as technologies evolve, W3C has created a recommendation for the core design components of the Web.

Architecture of the World Wide Web, Volume One is a W3C recommendation describing the standard protocols that support the identification of, and interaction between Web resources.

W3C Specifications and Timeline

Specification	Draft / Proposal	Recommendation
WSDL 1.1 Note	15. Mar 2001

WSDL Usage Scenarios	04. Jun 2002
WSDL Requirements	28. Oct 2002
WSDL Architecture	11. Feb 2004
WSDL Glossary	11. Feb 2004
WSDL Usage Scenarios	11. Feb 2004

WSDL 1.2 Core Language	11. Jun 2003
WSDL 1.2 Message Patterns	11. Jun 2003
WSDL 1.2 Bindings	11. Jun 2003

WSDL 2.0 Primer		26. Jun 2007
WSDL 2.0 Core Language		26. Jun 2007
WSDL 2.0 Adjuncts		26. Jun 2007
WSDL 2.0 SOAP 1.1 Binding		26. Jun 2007
WSDL 2.0 RDF Mapping		26. Jun 2007

Web Services Addressing Core		09. May 2006
Web Services Addressing SOAP Binding		09. May 2006

Web Architecture		15. Dec 2004

W3C Reference:

W3C Web Services Home Page