Can Enterprise Architecture Be Based on the Business Strategy?

Enterprise architecture (EA) is a set of documents describing various aspects of an organization from an integrated business and IT perspective. EA facilitates information systems planning and helps improve business and IT alignment. Traditionally, the concept of EA was closely coupled with the business strategy and mainstream EA methodologies recommend starting the EA effort from documenting the business strategy and then using it as the basis for defining the required structure of information systems. This conceptual paper discusses in detail four practical problems with the business strategy that question its value as the basis for EA initiatives. The presence of these problems challenges one of the most cherished beliefs or even axioms of the EA discipline: that EA should be based on the business strategy. This paper raises a number of questions regarding the information inputs necessary for the EA effort and calls for further research in respective directions