W3C WSDL Events

Web Services are related to application-to-application communication.

WSDL is a Web Services description language based on XML.

WSDL Tutorial

WSDL (Web Services Description Language) is an XML format used to describe Web Services.

For more information about WSDL, please read our WSDL Tutorial.

WSDL 1.1

As an XML format for describing Web Services, WSDL 1.1 was proposed to W3C in a note in March 2001 (by Ariba, IBM, and Microsoft).

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

The W3C WSDL 1.1 is merely a discussion note (NOTE). The publication of this note does not represent W3C's recognition of any degree of its content.

WSDL 1.2

The first working draft was published on December 17, 2001.

The latest working draft was published on June 11, 2003.

WSDL 2.0

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

W3C WSDL Specification and Timeline

Specification Draft/Proposal Recommendation
WSDL 1.1 Note March 15, 2001  
WSDL Usage Scenarios June 4, 2002  
WSDL Requirements October 28, 2002  
WSDL Architecture February 11, 2004  
WSDL Glossary February 11, 2004  
WSDL Usage Scenarios February 11, 2004  
WSDL 1.2 Core Language June 11, 2003  
WSDL 1.2 Message Patterns June 11, 2003  
WSDL 1.2 Bindings June 11, 2003  
WSDL 2.0 Primer   June 26, 2007
WSDL 2.0 Core Language   June 26, 2007
WSDL 2.0 Adjuncts   June 26, 2007
WSDL 2.0 SOAP 1.1 Binding   June 26, 2007
WSDL 2.0 RDF Mapping   June 26, 2007
WS Addressing Core   May 9, 2006
WS Addressing SOAP Binding   May 9, 2006
Web Architecture   December 15, 2004

W3C References

W3C Web Services Home Page