Part 4. Discovering Metadata
This part of the book answers the question of how to go about discovering all the important metadata (the explicit service description information) that supports service orientation. The figure that follows shows where metadata falls in the Web services stack.
This part presents two approaches for discovering metadata: via a centralized registry (UDDI) or by distributed discovery (Metadata Exchange). UDDI, which is discussed in Chapter 8, “Universal Description, Discovery, and Integration,” provides a centralized registry of metadata that can reference all kinds of information, including WSDL documents, policies, and ...
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