Hugh Darwen

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Hugh Darwen (born 1943)[1] is a computer scientist who was an employee of IBM United Kingdom from 1967[2] to 2004, and has been involved in the history of the relational model.[3]


From 1978 to 1982 he was a chief architect on Business System 12, a database management system that faithfully embraced the principles of the relational model.[4] He works closely with Christopher J. Date and represented IBM at the ISO SQL committees (JTC1 SC32 WG3 Database languages,[5] WG4 SQL/MM[6]) until his retirement from IBM. Darwen is the author of The Askew Wall[7] and co-author of The Third Manifesto, a proposal for serving object-oriented programs with purely relational databases without compromising either side and getting the best of both worlds, arguably even better than with so-called object-oriented databases.[8]

From 2004 to 2013 he lectured on relational databases at the Department of Computer Science, University of Warwick (UK),[9] and from 1989 to 2014 was a tutor and consultant for the Open University (UK)[10] where he was awarded a MUniv honorary degree for academic and scholarly distinction.[11] He was also awarded a DTech (Doctor in Technology) honorary degree by the University of Wolverhampton.[12] He currently teaches a database language designed by Chris Date and himself called Tutorial D.[13]


He has written a book on the card game bridge and has a website on the subject of double dummy problems. Alan Truscott has called him "the world's leading authority" on composed bridge problems.[14] He was responsible for the double dummy column in Bridge Magazine from 1965 to 1990.[1]


His early works were published under the pseudonym of Andrew Warden: both names are anagrams of his surname.[clarification needed]

  • ————————; Darwen, Hugh (2000), Foundation for Future Database Systems: The Third Manifesto: a detailed study of the impact of type theory on the relational model of data, including a comprehensive model of type inheritance (2nd ed.), Reading: Addison-Wesley Professional, ISBN 0-201-70928-7, LCCN 00035527, OCLC 43662285, LCC QA76.9.D3 D3683 2000 , 547 pp.
  • ————————; Darwen, Hugh (2006), Databases, Types and The Relational Model: the Third Manifesto (3rd ed.), Reading: Addison-Wesley, ISBN 0-321-39942-0, OCLC 70044091 , 572 pp.
  • ————————; Darwen, Hugh (July 2010), Database Explorations: Essays on the Third Manifesto and Related Topics, Trafford, ISBN 978-1-4269-3723-1 , 548 pp.


  1. ^ a b Francis, Henry G., Editor-in-Chief; Truscott, Alan F., Executive Editor; Francis, Dorthy A., Editor, Fifth Edition (1994). The Official Encyclopedia of Bridge (5th ed.). Memphis, TN: American Contract Bridge League. p. 605. ISBN 0-943855-48-9. LCCN 96188639. 
  2. ^ Date & Darwen (1998b), Foundation for Object-Relational Databases, Reading: Addison-Wesley, retrieved 2011-01-22 .
  3. ^ Valles, Jose R. (2008), Oracle database administrators as internal customers: Customer satisfaction criteria applied to technical decision making, performance, and evaluation, Capella University. School of Business; ProQuest, p. 10, ISBN 978-0-549-34189-5, The relational model was originally conceived by Dr. Edgar F. Codd and subsequently maintained and developed by Hugh Darwen and Chris Date as a general model of data 
  4. ^ Darwen, Hugh (November 1996), "Business System 12", System R, Paul McJones, retrieved 2011-01-22 .
  5. ^ Mann, Douglas (17–28 May 2004), List of Delegates (MS Word), Xi'an, CN: ISO/IEC JTC 1/SC 32 .
  6. ^ Scarponcini, Paul; Darwen, Hugh, Minutes of the SQL/MM WG4 Meeting and FCD and CD Continuation Editing Meetings (PDF), Document register, Brisbane and Sydney: ISO/IEC JTC1 SC32 committee, 9 and 13–17 July 1998 .
  7. ^ Darwen 2006.
  8. ^ Date & Darwen 1995.
  9. ^ Darwen, Hugh, Profile, LinkedIn .
  10. ^ Waugh, Kevin (2007), M359 Course Guide — Relational databases: theory and practice, Milton Keynes: The Open University .
  11. ^ "Open Eye: Time to honour a degree of openness". The Independent (London). 6 May 1999. 
  12. ^ BCS Prize Winners, University of Wolverhampton, 1998 .
  13. ^ Cartwright, David (12 October 2004). "A new approach to querying databases? the ABC of Tutorial D". Techworld. 
  14. ^ Truscott, Alan (3 January 1974). "British Problemist Writes About 114 Game Quandaries". The New York Times. 
  15. ^ "Bridge magic: double dummy problems, single dummy, sure tricks, curios and ...". Library of Congress Catalog Record. Retrieved 2014-05-17.

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