One of the most important requirements for highly automated Web Services is a rich description mechanism. In order to narrow down the negotiation and discovery of services that fit a particular contractual and technical profile, this information needs to be made available in an accessible way for machine processing. There have been several initiatives to develop systems for encoding and querying such Web Service descriptions, among them the Web Services Description Language (WSDL) and Universal Description, Discovery, and Integration (UDDI).
These data formats define a vocabulary for service descriptions, automation, rules, and processing, and perhaps the quickest route towards practical implementation of Web Services is to take advantage of RDF: the W3C's system for managing such vocabularies. This paper discusses how to use RDF for rapid implementation of Web services based on the emerging standards such as WSDL, UDDI, and ebXML.
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