Hugh Darwen
Encyclopedia
Hugh Darwen is a computer scientist who was an employee of IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...

 United Kingdom from 1967 to 2004, and has been involved in the history of the relational model
Relational model
The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by Edgar F...

.

Work

From 1978 to 1982 he was a chief architect on Business System 12
Business System 12
Business System 12, or simply BS12, was one of the first fully relational database management systems, designed and implemented by IBM's Bureau Service subsidiary at the company's international development centre in Uithoorn, Netherlands. Programming started in 1978 and the first version was...

, a database management system
Database management system
A database management system is a software package with computer programs that control the creation, maintenance, and use of a database. It allows organizations to conveniently develop databases for various applications by database administrators and other specialists. A database is an integrated...

 that faithfully embraced the principles of the relational model
Relational model
The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by Edgar F...

. He works closely with Christopher J. Date
Christopher J. Date
Chris Date is an independent author, lecturer, researcher, and consultant, specializing in relational database theory.-Biography:Chris Date attended High Wycombe Royal Grammar School from 1951 to 1958 and received his BA in Mathematics from Cambridge University in 1962. He entered the computer...

 and represented IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...

 at the ISO
International Organization for Standardization
The International Organization for Standardization , widely known as ISO, is an international standard-setting body composed of representatives from various national standards organizations. Founded on February 23, 1947, the organization promulgates worldwide proprietary, industrial and commercial...

 SQL
SQL
SQL is a programming language designed for managing data in relational database management systems ....

 committees (JTC1 SC32 WG3 Database languages, WG4 SQL/MM) until his retirement from IBM. Darwen is co-author of The Third Manifesto
The Third Manifesto
The Third Manifesto is Christopher J. Date's and Hugh Darwen's proposal for future database management systems, a response to two earlier Manifestos with the same purpose. The theme of the manifestos is how to avoid the 'object-relational impedance mismatch' between object-oriented programming...

.

As of 2011, he lectures on Relational Databases at the Department of Computer Science
Computer science
Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...

, University of Warwick
University of Warwick
The University of Warwick is a public research university located in Coventry, United Kingdom...

 (UK), and is a tutor for the Open University
Open University
The Open University is a distance learning and research university founded by Royal Charter in the United Kingdom...

 (UK). where he was awarded a MUniv honorary degree for academic and scholarly distinction He currently teaches a data sublanguage
Sublanguage
-In Natural Language:In Informatics, natural language processing, and machine translation, a sublanguage is the language of a restricted domain, particularly a technical domain...

 designed by Chris Date and himself called Tutorial D.

He has written a book on the card game bridge
Contract bridge
Contract bridge, usually known simply as bridge, is a trick-taking card game using a standard deck of 52 playing cards played by four players in two competing partnerships with partners sitting opposite each other around a small table...

 and has a website on the subject of double dummy problems. Alan Truscott
Alan Truscott
Alan Fraser Truscott was a bridge player, author and columnist. He wrote the daily bridge column for The New York Times for 41 years, from 1964 to 2005 and served as Executive Editor for all six editions of The Official Encyclopedia of Bridge, 1964 to 2002.- Britain :Truscott was born in Brixton,...

 has called him "the world's leading authority" on composed bridge problems.

Publications

His early works were published under the pseudonym
Pseudonym
A pseudonym is a name that a person assumes for a particular purpose and that differs from his or her original orthonym...

of Andrew Warden: both names are anagrams of his surname.
}} 496 pages.
}} 547 pages.
}} 422 pages.
572 pages.
, 548 pp.
.
, 216 pp.

External links

, contains material related to the book and links to Hugh Darwen’s seminar and lecture slides.
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