William Ward Armstrong
Encyclopedia
William Ward Armstrong is a Canadian mathematician and computer scientist. He earned his Ph.D. from the University of British Columbia
in 1966 and is most known as the originator Armstrong's axioms
of dependency in a Relational database
.
University of British Columbia
The University of British Columbia is a public research university. UBC’s two main campuses are situated in Vancouver and in Kelowna in the Okanagan Valley...
in 1966 and is most known as the originator Armstrong's axioms
Armstrong's axioms
Armstrong's axioms are a set of axioms used to infer all the functional dependencies on a relational database. They were developed by William W. Armstrong on his paper. The axioms are sound in that they generate only functional dependencies in the closure of a set of functional dependencies when...
of dependency in a Relational database
Relational database
A relational database is a database that conforms to relational model theory. The software used in a relational database is called a relational database management system . Colloquial use of the term "relational database" may refer to the RDBMS software, or the relational database itself...
.
Works
- Dmitry O. Gorodnichy, William Ward Armstrong, X. Li "Lecture Notes In Computer Science; Vol. 1311", Proceedings of the 9th International Conference on Image Analysis and Processing-Volume II 1997 ISBN 3540635084
- William Ward Armstrong. "Dependency structures of data base relationships". In Jack L. Rosenfeld and Herbert Freeman, editors, Information Processing 74: Proceedings of IFIP Congress 74, pages 580-583, North Holland, 1974.