Chapter 14 Service Contract Design Patterns


Service-orientation places a great deal of emphasis on the design of service contracts. The Standardized Service Contract design principle in fact requires that all contracts within a given service inventory conform to the same conventions so as to establish a truly federated endpoint layer. From an inventory architecture perspective, this requirement is addressed by Canonical Schema (158) and Canonical Expression (275), as explained in previous chapters.

For example, both Decoupled ...

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