The effect of knowledge representation schemes on maintainability of knowledge-based systems

Author

Lee, Sunro ; O´Keefe, Robert M.

Author_Institution

Dept. of Manage. Inf. Syst., Yonsei Univ., Seoul, South Korea

Volume

8

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

173

Lastpage

178

Abstract

Uses an experimental approach to investigate the representational effects of knowledge on maintainability, and compares this with the structural effects of rule sets investigated by Davis (1990). Results show that an object-based system, compared to a structured rule-based system, was easier to maintain in terms of the time to do the maintenance tasks, but not necessarily in terms of accuracy of the alterations. However, in some instances, subsumption and redundancies were introduced into the rule-based system, which can cause problems for subsequent maintenance. Subjects perceived the structured rule-base system as more complex than the object-oriented system, and perceived the object structure as more useful than the rule modularization and documentation

Keywords

knowledge based systems; knowledge representation; object-oriented programming; redundancy; software maintenance; accuracy; documentation; knowledge representation schemes; knowledge-based systems maintainability; object structure; object-based system; redundancies; rule modularization; rule sets; structural effects; structured rule-based system; subsumption; Application software; Documentation; Knowledge based systems; Knowledge representation; Performance evaluation; Programming profession; Runtime; Software maintenance; Software quality; Software systems;

fLanguage

English

Journal_Title

Knowledge and Data Engineering, IEEE Transactions on

Publisher

ieee

ISSN

1041-4347

Type

jour

DOI

10.1109/69.485645

Filename

485645