..UDDI..

           UDDI (Universal Description Discovery and Integration) is often called the "yellow pages" for Web services. There are having three components in UUDI which are Yellow pages, White pages and Green pages. Yellow page is the protocol for discovering Web Services on the internet. White page for describing the business. Green page for describing how to access the service. UDDI stores information that helps clients select and use a web service. UDDI allows businesses to list themselves by name, product, location, or the Web services they offer. UDDI are directory service where businesses can register and search for Web services, directory for storing information about web services, directory of web service interfaces described by WSDL. 

UDDI Issues..

• Code reuse
• Ongoing maintenance
• Host problem
• Security problem