Ken Orr

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Ken Orr
Born(1939-05-10)10 May 1939
Died14 June 2016(2016-06-14) (aged 77)
EducationWichita State University BA 1960, University of Chicago MA 1963
OccupationSoftware Engineer
EmployerThe Ken Orr Institute
Known forWarnier/Orr diagram

Kenneth T. Orr (May 10, 1939 – June 14, 2016) 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.


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.[1]


Orr started his career as Director of Information Systems at the State of Kansas in 1970. In 1973 he founded his own firm Ken Orr & Associates, which he directed until 1985. He was Professor at the School of Technology and Information Management of the Washington University in St. Louis, where he directed its Center for the Innovative Application of Technology.[2] From 1988 until his death he was President of the Ken Orr Institute. Beginning in 2000, Ken served as a Cutter Consortium Fellow and Senior Consultant.[1] Ken Orr died on June 14, 2016.[3]


  • Orr, Ken (1977). Structured systems development. New York: Yourdon Press. ISBN 9780917072062.
  • Orr, Ken (1981). Structured requirements definition. Topeka, Kansas: Ken Orr and Associates, Inc. ISBN 9780960588404.
Articles, a selection


  1. ^ a b Ken Orr: Fellow and Senior Consultant at Accessed December 6, 2013.
  2. ^ PM Network. Vol 9 (1995). p. 61
  3. ^ "Kenneth Orr - View Obituary & Service Information".

External links[edit]