CIO roles and responsibilities: Twenty-five years of evolution and change

We investigated how the CIO's job has changed over the past years and found that the CIOs' role has evolved to reflect both the firm's IS infrastructure and strategy. This has led to two versions of the role: an executive-level manager focused on the firm's strategy and processes, and a technical manager focused on minimizing costs by rationalizing and leveraging the existing IS infrastructure. The degree to which a firm has standardized its IS architecture infrastructure, and the degree to which IS enables core products, services, processes, or competitive advantage of the firm impact the nature of the role. (C) 2009 Elsevier B.V. All rights reserved.