The Web Services Interoperability Organisation (WS-I), formed nearly a decade ago by vendors such as Microsoft, IBM and Oracle, is going out of business.

In a statement released on Wednesday, WS-I said it had concluded its charter to document best practices for web services interoperability across multiple platforms, operating systems and programming languages. WS-I documents released include Basic Profile 1.2 and 2.0 and Reliable Secure Profile 1.0.

"By publishing the final three profiles, WS-I marks the completion of its work. Stewardship over WS-I's assets, operations and mission will transition to OASIS (Organisation for the Advancement of Structured Information Standards)," WS-I said in a statement.

"All of these profiles are supported by the shipping version of .Net Framework 4.0. Through our collective profile development and testing efforts, Microsoft and other WS-I members have delivered a better customer experience based on web services interoperability," said Microsoft's Paul Cotton in a statement released by WS-I. The organisation was founded in 2002.

WS-I had become less relevant in recent years with developments such as the industry's embrace of alternative REST web services, analyst Ron Schmelzer, managing partner of ZapThink, said. "The need for the WS-I is not as great as it was."

Companies acquiring each other also has diminished issues of interoperability, such as Sun Microsystems and BEA Systems becoming part of Oracle, said Schmelzer. SOAP was fairly complicated, which spurred formation of WS-I, he said.