IBM WebSphere Service Registry and Repository (WSRR) is a service registry for use in a Service-oriented architecture. It runs as a Java Enterprise Application on IBM WebSphere Application Server. It provides functionality to store and retrieve service-metadata.WSDL, XSD, SCA Modules and Policy documents can be loaded and parsed into separate entities. For example, with a WSDL document, separate entities are created for service, binding, portType etc.XML and binary documents can be loaded as single entities. These entities can then be decorated with additional data in the form of properties, classifications and relationships. Classification systems defined in OWL are supported.Custom object types can be modelled in OWL such as service contracts, SLAs and SLDs.