Hugh Darwen

Hugh Darwen is a computer scientist who was an employee of IBM United Kingdom from 1967<ref name="AW">Template:Citation.</ref> to 2004, and has been involved in the development of the relational model.<ref>Template:CitationTemplate:Dead link</ref>

Work

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.<ref name = "BS12">Template:Citation.</ref> He worked closely with Christopher J. Date and represented IBM at the ISO SQL committees (JTC1 SC32 WG3 Database languages,<ref name = "WG3">Template:Citation.</ref> WG4 SQL/MM<ref name = "ISO">Template:Citation.</ref>) until his retirement from IBM. Darwen is the author of The Askew WallTemplate:Sfn 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.Template:Sfn

From 2004 to 2013 he lectured on relational databases at the Department of Computer Science, University of Warwick (UK),<ref>Template:Citation.</ref> and from 1989 to 2014 was a tutor and consultant for the Open University (UK)<ref name = "OpenAC">Template:Citation.</ref> where he was awarded a MUniv honorary degree for academic and scholarly distinction.<ref name = "honours">Template:Cite news</ref> He was also awarded a DTech (Doctor in Technology) honorary degree by the University of Wolverhampton.<ref>Template:Citation.</ref> He later taught a database language designed by Chris Date and himself called Tutorial D,<ref>Template:Cite news</ref> part of a proposed family of database query languages called "D".<ref>Template:Cite web</ref>

Bridge

He has written two books on the card game bridge, both on the subject of Template:Gcb, on which he has a website. Alan Truscott has called him "the world's leading authority" on composed bridge problems.<ref>Template:Cite news</ref> He was responsible for the double dummy column in Bridge Magazine and other UK bridge publications from 1965 to 2004.

Publications

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

• Template:Citation, 213 pp. Template:OCLC<ref>"Bridge magic: double dummy problems, single dummy, sure tricks, curios and ...". Library of Congress Catalog Record. Retrieved 17 May 2014.</ref>
• Template:Citation, 331 pp. Template:OCLC<ref>"COMPENDIUM OF DOUBLE DUMMY PROBLEMS : double dummy bridge problems from 1896 to 2005". Library of Congress Catalog Record. Retrieved 05 November 2022.</ref>
• Template:Citation.
• Template:Citation, 231 pp.
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• Template:Citation, 496 pp.

• Template:Citation, 547 pp.

• Template:Citation, 422 pp.

• Template:Citation, 572 pp.
• Template:Citation, 548 pp.

External links

• Template:Official website at University of Warwick
• Double Dummy Corner – Darwen's website devoted to problems in the play of the cards at bridge
• The Third Manifesto (Date & Darwen 1995) – with material related to the book and links to Darwen's seminar and lecture slides
• Template:LCAuth
• Andrew Warden at LC Authorities with 1 catalogue record (1990 collection)