Title :
Visual knowledge query language as a front-end to relational systems
Author :
Siau, K.L. ; Chan, H.C. ; Tan, K.P.
Author_Institution :
Dept. of Inf. Syst. & Comput. Sci., Nat. Univ. of Singapore, Singapore
Abstract :
To alleviate the need to know the logical database organization, the authors propose the use of a semantic data model, known as the enhanced entity-relationship model, as a front-end to the relational systems. A formal, high-level visual knowledge query language (VKQL) has also been designed for this interface. This language provides for knowledge abstraction as the user communicates only domain knowledge with the system without any implication on the storage structure or search strategies. A translation algorithm is also described to translate VKQL queries to standard SQL equivalents
Keywords :
query languages; relational databases; user interfaces; SQL equivalents; VKQL queries; domain knowledge; enhanced entity-relationship model; high-level visual knowledge query language; knowledge abstraction; relational systems; semantic data model; Artificial intelligence; Computer science; Data models; Database languages; Information systems; Knowledge management; Programming; Relational databases; User interfaces; Visual databases;
Conference_Titel :
Computer Software and Applications Conference, 1991. COMPSAC '91., Proceedings of the Fifteenth Annual International
Conference_Location :
Tokyo
Print_ISBN :
0-8186-2152-4
DOI :
10.1109/CMPSAC.1991.170205
