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Enterprise Architecture (EA) is a complete expression of the enterprise; a master plan which "acts as
a collaboration force" between aspects of business planning such as goals, visions, strategies and
governance principles; aspects of business operations such as business terms,
organization structures, tasks, activities and information; aspects of
automation such as information systems and databases; and the enabling
technological infrastructure of the business such as computers, operating systems and networks.
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In a large modern enterprise, a rigorously defined EA framework is necessary to be able to capture a
vision of the "entire enterprise" in all its dimensions and complexity.
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It yields centralized, stable, and consistent information about the enterprise environment. In a financial
organization, for example, an EA assessment would help executives pinpoint the organization's more lucrative
markets, understand how well the organization's current resources are meeting customer needs in those locations,
and determine what kind of systems might be needed to improve services.
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The precise, high-quality information an EA program provides also make it much easier for the organization
to respond to the forces of change and to make better decisions. And finally, because an EA program
enables organizations to reduce duplication and inconsistencies in information, they can dramatically
improve Return On Investment (ROI) for future Information Technology (IT) implementations common enterprise
architecture information and building a repository to store it.
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