 | Level: Intermediate Contributors: IBM 31 Oct 2006 Read about the concepts and capabilities of a service registry and repository, and the standards that deliver the value of a service registry and repository in a heterogeneous environment, in this whitepaper.
A number of key specifications and standards related to interoperability of service registries and repositories exist today. These include the resource and metadata specifications which themselves build on the robust landscape of Web services specifications. Further, in the modeling space, a mature model for classifying services also exists with the OWL standard. This standard forms one key part of a data model that goes beyond the technical documents that need to be stored in a service registry or repository.
It is clear, however, that additional work remains to achieve a fully interoperable service registry and repository. This additional work is in establishing an industry definition of the data model for service registry and repository that aligns with WS-MetadataExchange and provides a means to maintain user defined annotations, classifications and relationships along with the technical documents such as WSDL and XSD. The new or extended queries that could be carried using WS-ResourceTransfer (WS-RT) will also need to be standardized along with that service registry and repository data model.
Previous specifications efforts have laid out a significant foundation of understanding what is important to include in a service registry data model. The emergence of new specifications that provide a common mechanism to manipulate resources now enables the service information repository to be standardized as well. The result of combining the critical features and experience from service registry efforts and using emerging standards related to service and resource management will establish a more functional point of integration with interoperability that does not exist today.
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