Chapter 6
Transformation to Resolve Data Impedance
SOA and Web services rely upon the service interface to define “what” is being requested as a set of data values and operations, and also “what” is returned as the result of service processing. However, complexity arises when SOA and Web service consumers are from different applications and with varied data value definitions. This becomes clearly evident with different requests for data services that collect or act upon data that may originate from across many different data at rest implementations.
As described in Chapter 5, data services can help to access, manipulate, and expose data from these varied sources, but the problem of data impedance remains. For the more established enterprise, ...
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