(
Universal
Description,
Discovery and
Integration) An industry initiative for a universal business registry (catalog) of Web services turned over to the stewardship of OASIS in 2002 as the version 3 specification of UDDI was released. Originally developed by Ariba, IBM, Microsoft and others, UDDI is designed to enable software to automatically discover and integrate with services on the Web. Using a UDDI browser, humans can also review the information contained in the registry, which is a network of servers on the Internet similar to the Domain Name System (DNS).
White, Yellow and Green Pages
UDDI white pages are addresses and contacts; yellow pages are industry classification. The green pages are descriptions of services that include the XML version, type of encryption and a Document Type Definition (DTD) of the standard. UDDI messages ride on top of the SOAP protocol, which invokes services on the Web. See
WSDL,
Web services,
SOAP,
DTD and
Disco.