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SOA with Java: Realizing Service-Orientation with Java Technologies by Thomas Plunkett, David Chou, Raj Balasubramanian, Philip Thomas, Satadru Roy, Andre Tost, Thomas Erl

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Chapter 9. Entity Services with Java

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9.1 Inside the Java Entity Service

9.2 Java Entity Service Design and Implementation

Existing data architectures can be problematic for businesses, as they pose a number of inherent challenges. For example:

Multiple Versions of the Truth – Data concerning the same business entity contains different values in different systems. For example, an enterprise can store customer information on several databases, which have little to no inter-database integration or synchronization.

Inconsistent Information – Applications that can return varying results when asked for the same information apply different business ...

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