ALAN M. DAVIS is a prolific author with over twenty-five years’ experience consulting for over 100 major corporations worldwide including Boeing, Cigna Insurance, Federal Express, General Electric and the Software Productivity Consortium. He is currently a professor of information systems at the University of Colorado at Colorado Springs. He was president of Omni-Vista, Inc., a vice president at BTG, Inc., and a director of R&D at GTE Communication Systems. He was a member of the board of directors for Requisite, Inc., acquired by Rational Software Corporation in 1997, and subsequently acquired by IBM in 2003. He is the author of 201 Principles of Software Development, Software Requirements: Objects, Functions and States, Second Edition, and Just Enough Requirements Management.