Fundamental Design
Terminology and Concepts
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Elements of
Service-Oriented Computing
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Goals and Benefits of
Service-Oriented Computing
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Service-Oriented Computing
in the Real World
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Goals and Benefits of Service-Oriented Computing
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Increased Federation
A federated IT environment is one where resources and applications are united while maintaining their individual autonomy and self-governance. SOA aims to increase a federated perspective of an enterprise to whatever extent it is applied. It accomplishes this through the wide spread deployment of standardized and composable services each of which encapsulates a segment of the enterprise and expresses it in a consistent manner.
In support of increasing federation, standardization becomes part of the extra up-front attention each service receives at design time. Ultimately this leads to an environment where enterprise-wide solution logic becomes naturally harmonized, regardless of the nature of its underlying implementation.
Figure: Three service contracts establishing a federated set of endpoints, each of which encapsulates a different implementation.
When service-oriented solutions are built via the Web services technology platform, the level of attainable federation is further elevated because services can leverage the non-proprietary nature of the technologies themselves. However, even when using Web services the key success factor to achieving true unity and federation remains the application of design principles and standards.
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