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

fYear

1991

fDate

11-13 Sep 1991

Firstpage

373

Lastpage

378

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CMPSAC.1991.170205

Filename

170205