Web services need to be hosted on web service hosts. Web service providers can approach any of the UDDI hosts to register their services. The information the service provider provides is stored in a database at the host site. The service provider can choose to host the information across multiple UDDI registries.
If the business service is registered across multiple registries, then the hosts should support replication service to ensure that all the web services are consistent in their definition. This ensures that all hosts have the same information and all users requesting data about a business entity receive the same information from any of the host databases.
Based on the type of business information to be hosted, the registry can be categorized as a public business registry or a private business registry. A public business registry is a directory that contains descriptions of international business services. These registries are usually hosted by large organizations, such as Microsoft, IBM, and Ariba on a series of dedicated UDDI servers. Private registries, on the other hand, are hosted within an organization.
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