Semantic annotations for WSDL and XML Schema working draft

One of the major challenges in Real World SOA enterprise applications is the lack of semantic information associated with Service Contracts. For a while now the W3C folks have been working in different efforts for relating semantic web Standards (RDF, SPARK, etc) with Web Service basic standards (SOAP, WSDL, etc). One of those efforts Semantic annotations for WSDL and XML Schema has been announced as a W3C working draft.