Ken Orr

Ken Orr
Born	(1939-05-10)10 May 1939
Died	14 June 2016(2016-06-14)(aged 77)
Education	Wichita State UniversityBA 1960,University of ChicagoMA 1963
Occupation	Software engineer
Employer	The Ken Orr Institute
Known for	Warnier/Orr diagram
Website	KenOrr.com

Kenneth T. Orr(May 10, 1939 – June 14, 2016) was an Americansoftware engineer,executive and consultant, known for his contributions in the field of software engineering tostructured analysisand theWarnier/Orr diagram.

Education

Orr received his BA in Mathematics and Physics in 1960 fromWichita State University,and his MA inPhilosophyin 1963 from theUniversity of Chicago.

Career

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 theWashington University in St. Louis,where he directed its Center for the Innovative Application of Technology.From 1988 until his death he was President of the Ken Orr Institute. Beginning in 2000, Ken served as aCutter ConsortiumFellow and Senior Consultant.Ken Orr died on June 14, 2016.

Publications

Books

• Orr, Ken (1977).Structured systems development.New York: Yourdon Press.ISBN9780917072062.
• Orr, Ken (1981).Structured requirements definition.Topeka, Kansas: Ken Orr and Associates, Inc.ISBN9780960588404.

Articles, a selection

• Orr, Ken; Gane, Chris; Yourdon, Edward; Chen, Peter P.; Constantine, Larry L. (April 1989)."Methodology: the experts speak".Byte.14(4): 221–233.ISBN9781447134312.
• Orr, Ken (February 1998)."Data quality and systems theory".Communications of the ACM.41(2).Association for Computing Machinery:66–71.doi:10.1145/269012.269023.S2CID18740509.
• Orr, Ken (2002)."CMM versus agile development: Religious Wars and Software Development".Business Agility & Software Engineering (Agile Project Management Executive Report).3(7).Cutter Consortium.Word document version.
• Orr, Ken (May–June 2004). "Agile requirements: opportunity or oxymoron?".IEEE Software.21(3).IEEE Computer Society:71–73.doi:10.1109/MS.2004.1293075.S2CID25069896.

External links

• The Ken Orr Institute(KOI)