American software engineer
According to Wikipedia,
Kenneth T. Orr was an American software engineer, executive and consultant, known for his contributions in the field of software engineering to structured analysis and with the Warnier/Orr diagram. Education Orr received his BA in Mathematics and Physics in 1960 from Wichita State University, and his MA in Philosophy in 1963 from the University of Chicago.
Ken Orr is affiliated with the following schools: