UDDI Overview
Commerce can only take place when there is a match between demand and offer. A recurrent problem for businesses is how to reach their potential customers and future partners with information about their products and services. UDDI attempts to answer this problem on the Internet by providing an industry-wide approach that allows companies to advertise both the business and technical aspects of their offering.
A business can register three types of information in a UDDI registry. These three types of information are commonly referred to as "white pages", "yellow pages" and "green pages" information in the literature:
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White pages
White pages provide basic contact information about a company, such as the business name, address and contact information. White pages also provide unique business identifiers, such as Dun & Bradstreet's D-U-N-S numbers, that are unique nine-digit sequences widely recognized for keeping track of businesses. In short, white pages allow customers and partners to discover business services based upon business identification.
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Yellow pages
Yellow pages describe a business service using different categorizations ("taxonomies" in UDDI terminology). This information allows others to discover business services based upon its categorization (such as being in the manufacturing or software development business).
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Green pages
Green pages provide technical information on the behaviours and supported functions of a business service hosted by a business. Green pages in UDDI are not limited to describing XML-based Web services, but any business service type offered by a business entity. This may cover phone-based services such as call centers, E-mail based services such as technical support for a product, fax-based services such as a fax to E-mail service, etc.
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