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W3C WSDL activities

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


WSDL (Web Services Description Language) is an XML format for describing Web Services.

To learn more about WSDL knowledge, please read our WSDL tutorial .

WSDL 1.1

Web Services can be described as an XML format, WSDL 1.1 in March 2001 had a record of being recommended to the W3C (the Ariba, IBM and Microsoft).

This record also describes how to combine SOAP 1.1, HTTP GET / POST, and MIME to use WSDL.

W3C WSDL 1.1 merely record (NOTE) for discussion. This record does not mean that W3C published an endorsement of any degree.

WSDL 1.2

The first working draft released on December 17, 2001.

The latest working draft released on June 11, 2003.

WSDL 2.0

W3C's XML Protocol Working Group is currently working on WSDL 2.0.

WEB structure

The core structure of the Web is a Web server, it is generally assumed by a separate server, database server information management system database server, each client data requests submitted by the Web server to the database server, and then returned by the Web server issue the requesting client.

Here's a Web server can be set to a gateway, a termination intranet information management system, and the other end access to corporate Intranet, so both to avoid the internal network directly exposed to the outside, and make accessible to the internal Web site.

W3C WSDL specification and Timeline

specification Draft / proposal Recommended time
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 Manual:

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