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Do More with SOA Integration: Best of Packt by Doug Todd, Arun Poduval

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Patterns for data integration

Data integration is implemented using three fundamental patterns:

  • Federation
  • Population
  • Synchronization

Federation

The federation pattern is a simple data integration pattern that provides access to different data sources, and gives the calling application the impression that these sources are a single, logical data source. This is achieved as follows:

  1. Expose a single consistent interface to the application.
  2. Translate the interface to whatever interface is needed for the underlying data.
  3. Compensate for any differences in function between the different data sources.
  4. Allow data from different sources to be combined into a single result set that is returned to the user.

This is illustrated in the following diagram:

The federation ...

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