(Universal Description Discovery and Integration protocol) A directory model for web services. UDDI is a specification for maintaining standardized directories of information about web services, recording their capabilities, location and requirements in a universally recognized format. Seen (with SOAP and WSDL) as one of the three foundation standards of web services, UDDI is currently the least used.
Although UDDI is routinely cited alongside SOAP and WSDL as the third foundation standard of web services, it is both the least understood and the least often implemented of the three specifications ...