IBM, BEA Systems, SAP and Microsoft have published an initial draft of a new web services specification for retrieving web services metadata.
Additionally, IBM, BEA and Microsoft published an update to the Web Services Addressing (WS-Addressing) specification.
WS-Addressing defines endpoint references and message information headers to allow systems to support the transmission of web service messages.
Both specifications are meant to help deliver on the promise of web services by facilitating the exchange of data between disparate types of software applications in a standards-based way.
The Web Services Metadata Exchange (WS-MetadataExchange) specification builds on the existing web services architecture. It defines how web services retrieve specific types of metadata used to interact with other web services.
The specification defines three request-response message pairs: One retrieves the WS-Policy associated with the receiving endpoint or a given target namespace, another retrieves the WSDL (Web Services Description Language) data and a third retrieves the XML schema.
The existing WS-MetadataExchange specification is an initial public draft release. Microsoft, IBM, BEA and SAP provide it for review and evaluation purposes only, and plan to solicit contributions and suggestions in the near future.
More information about the WS-MetadateExchange specification can be found at:
More details on the WS-Addressing specification is at:
Joris Evers writes for IDG News Service