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Applied Architecture Patterns on the Microsoft Platform - Second Edition by Gregor Noriskin, Dmitri Olechko, Andre Dovgal

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Multiple master synchronization

It is a rare business that has one and only one version of truth for all of the data that it maintains. Instead, businesses rely on a hodgepodge of diverse systems, all of which will identify the critical nouns of a business differently, and will often contain radically different versions of the definition of those nouns.

For example, in one system, one of our authors might be labeled "Mike", in another "Michael", and in a third "That funny-smelling, old guy." When one attempts to manage and reconcile these discrepancies, one is presented with the same issue Humpty Dumpty presented to Alice in Through the Looking-Glass.

"When I use a word," Humpty Dumpty said in a rather scornful tone, "it means just what I choose ...

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