The Universal Description, Discovery, and Integration standard (UDDI) is the technology for publishing and finding information about Web services that a business provides. Its goal is to enable companies to find one another electronically and thus facilitate e-commerce.
Conceptually, UDDI can be compared to a telephone book's white, yellow, and green pages:
The “white pages” contain information such as name, business identifiers, and contact information.
The “yellow pages” include information such as industry codes and product classifications. It also contains the descriptive information about the services that the business makes available.
The “green pages” provide the technical information about services that are exposed by the business. ...