Overview#Organization for the Advancement of Structured Information Standards (OASIS) is a global consortium that works on the development, convergence, and adoption of e-business and Web Service standards.
Organization for the Advancement of Structured Information Standards is headquartered in the United States, a trade association of SGML tool vendors to cooperatively promote the adoption of SGML through mainly educational activities, though some amount of technical activity was also pursued including an update of the CALS Table Model specification and specifications for fragment interchange and entity management.
In 1998 SGML Open changed its emphasis from SGML to XML, and changed its name to Organization for the Advancement of Structured Information Standards Open to be inclusive of XML and any future structured information standards. The focus of the consortium's activities also moved from promoting adoption (as XML was getting lots of attention on its own) to developing technical specifications. In July 2000 a new technical committee process was approved. With the adoption of the process the manner in which technical committees were created, operated, and progressed their work was regularized. At the adoption of the process there were five technical committees; by 2004 there were nearly 70.
During 1999 OASIS was approached by UN/CEFACT, the committee of the United Nations dealing with standards for business, to jointly develop a new set of specifications for electronic business. The joint initiative, called "ebXML" and which first met in November 1999, was chartered for a three-year period. At the final meeting under the original charter, in Vienna, UN/CEFACT and Organization for the Advancement of Structured Information Standards agreed to divide the remaining work between the two organizations and to coordinate the completion of the work through a coordinating committee. In 2004 Organization for the Advancement of Structured Information Standards submitted its completed ebXML specifications to ISO TC154 where they were approved as ISO 15000.