Title :
Operational construction of integrity constraints
Author :
Berztiss, Alfs T.
Author_Institution :
Dept. of Comput. Sci., Pittsburgh Univ., PA, USA
Abstract :
Shows that data and knowledge base integrity constraints can be regarded as queries. This allows the author to use his visual query language Vizla for the construction of constraints in an operational style. The primary tool for this is the Vizla filter, which lets through only those elements of a set that satisfy a filter predicate. The main contribution of the paper is a method of using filter predicates as constraints, but fuzzy integrity constraints are also considered
Keywords :
data integrity; database management systems; knowledge based systems; query languages; visual languages; Vizla; database; filter predicate; fuzzy constraints; integrity constraints; knowledge base; operational construction; visual query language; Application software; Computational modeling; Computer science; Control systems; Database languages; Filters; Operating systems; Process control; Software libraries; Text recognition;
Conference_Titel :
Software Engineering and Knowledge Engineering, 1992. Proceedings., Fourth International Conference on
Conference_Location :
Capri
Print_ISBN :
0-8186-2830-8
DOI :
10.1109/SEKE.1992.227913
