Chapter 4

The Architecture of EA

Inji Wijegunaratne, George Fernandez and Peter Evans-Greenwood

Abstract

This chapter dissects the structure of Enterprise Architecture, not be delving into detail, but by “stepping back”. We describe the various facets of the term “Enterprise Architecture”: Context, Content and Process. We then analyse options for the scope of EA, from an ideal (or idealistic) scope of EA at one end, to the typical IT-driven EA at the other. We propose a pragmatic and achievable scope and approach to EA between these two ends, based on the strategic fit of business and IT. </p><p> Each of the three stages introduced in Chapter 3- Align, Elaborate and Govern-is then discussed under this new light.

Total Pages: 25-43 (19)

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