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Enterprise Architecture


Enterprise architecture (EA) is "a well-defined practice for conducting enterprise analysis, design, planning, and implementation, using a holistic approach at all times, for the successful development and execution of strategy. Enterprise architecture applies architecture principles and practices to guide organizations through the business, information, process, and technology changes necessary to execute their strategies. These practices utilize the various aspects of an enterprise to identify, motivate, and achieve these changes."

Practitioners of enterprise architecture, enterprise architects, are responsible for performing the analysis of business structure and processes and are often called upon to draw conclusions from the information collected to address the goals of enterprise architecture: effectiveness, efficiency, agility, and .

In the enterprise architecture literature and community, there are various perspectives in regards to the meaning of the term enterprise architecture. As of 2012, no official definition exists; rather, various organizations (public and private) promote their understanding of the term. Consequently, the enterprise architecture literature offers many definitions for the term enterprise architecture; some of which are complementary, others nuances, and others yet are in opposition.

The MIT Center for Information Systems Research (MIT CISR) in 2007 defined enterprise architecture as the specific aspects of a business that are under examination:

The Enterprise Architecture Body of Knowledge defines enterprise architecture as a practice, which

IT analysis firm Gartner defines the term as a discipline where an enterprise is led through change. According to their glossary,

Each of the definitions above underplay the historical reality that enterprise architecture emerged from methods for documenting and planning information systems architectures, and the current reality that most enterprise architecture practitioners report to a CIO or other IT department manager. In a business organization structure today, the enterprise architecture team performs an ongoing business function that helps business and IT managers to figure out the best strategies to support and enable business development and business change – in relation to the business information systems the business depends on.


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