W3C has finalized a Web services description language with full support of the primary protocol for the Web, HTTP, and the most frequently implemented Web services protocol, SOAP.
Web Services Description Language (WSDL) 2.0 incorporates both the improvements for WSDL 1.1 found in the WS-I Basic Profile, and builds in inheritance, import functions, improved description of faults and errors, and full HTTP and SOAP support. Rigorous testing and interop sessions, including week-long programming marathons by the Web Services Description Working Group itself, have produced a solid interoperable standard that delivers on the goals of the initial WSDL 1.1 version, and also meets the needs of Web applications developers today.
