Hugh Darwen

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


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.[3] He works closely with Christopher J. Date and represented IBM at the ISO SQL committees (JTC1 SC32 WG3 Database languages,[4] WG4 SQL/MM[5]) until his retirement from IBM. Darwen is the author of The Askew Wall[6] 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[7].

As of 2011, he lectures on Relational Databases at the Department of Computer Science, University of Warwick (UK),[8] and is a tutor for the Open University (UK)[9] where he was awarded a MUniv honorary degree for academic and scholarly distinction.[10] He was also awarded a DTech (Doctor in Technology) honorary degree by the University of Wolverhampton.[11] He currently teaches a database language designed by Chris Date and himself called Tutorial D.[12]

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.[13]


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

  • ————————; Darwen, Hugh (2006), Databases, Types and The Relational Model: the Third Manifesto (3rd ed.), Reading, MA: 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. ^ Foundation for Object-Relational Databases, DE: Addison-Wesley, retrieved 2011-01-22 
  2. ^ 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" , 149 pp.
  3. ^ Darwen, Hugh (November 1996), "Business System 12", System R, Paul McJones, retrieved 2011-01-22 
  4. ^ Mann, Douglas (2004.05.17–28), List of Delegates (MS Word), Xi'an, CN: ISO/IEC JTC 1/SC 32  .
  5. ^ Minutes of the SQL/MM WG4 Meeting and FCD and CD Continuation Editing Meetings (PDF), Document register, Brisbane and Sydney, AU: ISO/IEC JTC1 SC32 committee, July 9, 13–7, 1998 
  6. ^ Darwen 2006.
  7. ^ Date & Darwen 1995.
  8. ^ Darwen, Hugh, Profile, LinkedIn .
  9. ^ Waugh, Kevin (2007), M359 Course Guide — Relational databases: theory and practice, Milton Keynes, UK: The Open University .
  10. ^ "Open Eye: Time to honour a degree of openness", The Independent (London, ENG, UK), 1999-05-06 
  11. ^ BCS Prize Winners, UK: University of Wolverhampton, 1998 
  12. ^ Cartwright, David (2004-10-12 16h GMT), A new approach to querying databases? the ABC of Tutorial D, Techworld 
  13. ^ Truscott, Alan (January 3, 1974), "British Problemist Writes About 114 Game Quandaries", The New York Times 

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