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Data Warehousing: Architecture and Implementation by Michelle C. Dy, Michael W. Hawkins, Mark Humphries

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Chapter 1. The Enterprise IT Architecture

This chapter begins with a brief look at how changing business requirements have, over time, influenced the evolution of Enterprise Architectures. The Info Motion ("Information in Motion") Enterprise Architecture is introduced to provide IT professionals with a framework with which to classify the various technologies currently available.

The Past: Evolution of Enterprise Architectures

The IT architecture of an enterprise at a given time depends on three main factors:

  • the business requirements of the enterprise;

  • the available technology at that time; and

  • the accumulated investments of the enterprise from earlier technology generations.

The business requirements of an enterprise are constantly changing, and the ...

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