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A tool-supported approach to inter-tabular verification

A tool-supported approach to inter-tabular verification
A tool-supported approach to inter-tabular verification
The use of decision tables to verify knowledge based systems (KBS) has been advocated several times in the validation and verification (V&V) literature. However, one of the main drawbacks of these systems is that they fail to detect anomalies that occur over rule chains. In a decision table based context this means that anomalies that occur due to interactions between tables are neglected. These anomalies are called inter-tabular anomalies. In this paper we investigate an approach that deals with inter-tabular anomalies. One of the prerequisites for the approach was that it could be used by the knowledge engineer during the development of the KBS. This requires that the anomaly check can be performed on-line. As a result, the approach partly uses heuristics where exhaustive checks would be too inefficient. All detection facilities that will be described have been implemented in a table-based development tool called . The use of this tool will be briefly illustrated. In addition, some experiences in verifying large knowledge bases are discussed.
decision tables, modular KBS, V&V
0957-4174
277-285
Vanthienen, J.
808131f1-b77b-4dee-bdda-90a94124c999
Mues, C.
07438e46-bad6-48ba-8f56-f945bc2ff934
Wets, G.
3f33a83b-e762-4c1a-b25e-0accabe08780
Delaere, K.
05d905a0-e33a-4ba1-971b-f70afd28aef9
Vanthienen, J.
808131f1-b77b-4dee-bdda-90a94124c999
Mues, C.
07438e46-bad6-48ba-8f56-f945bc2ff934
Wets, G.
3f33a83b-e762-4c1a-b25e-0accabe08780
Delaere, K.
05d905a0-e33a-4ba1-971b-f70afd28aef9

Vanthienen, J., Mues, C., Wets, G. and Delaere, K. (1998) A tool-supported approach to inter-tabular verification. Expert Systems with Applications, 15 (3-4), 277-285. (doi:10.1016/S0957-4174(98)00047-5).

Record type: Article

Abstract

The use of decision tables to verify knowledge based systems (KBS) has been advocated several times in the validation and verification (V&V) literature. However, one of the main drawbacks of these systems is that they fail to detect anomalies that occur over rule chains. In a decision table based context this means that anomalies that occur due to interactions between tables are neglected. These anomalies are called inter-tabular anomalies. In this paper we investigate an approach that deals with inter-tabular anomalies. One of the prerequisites for the approach was that it could be used by the knowledge engineer during the development of the KBS. This requires that the anomaly check can be performed on-line. As a result, the approach partly uses heuristics where exhaustive checks would be too inefficient. All detection facilities that will be described have been implemented in a table-based development tool called . The use of this tool will be briefly illustrated. In addition, some experiences in verifying large knowledge bases are discussed.

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More information

Published date: 1998
Keywords: decision tables, modular KBS, V&V

Identifiers

Local EPrints ID: 36161
URI: http://eprints.soton.ac.uk/id/eprint/36161
ISSN: 0957-4174
PURE UUID: b3c88db3-3b37-4604-88e0-174f5436d894
ORCID for C. Mues: ORCID iD orcid.org/0000-0002-6289-5490

Catalogue record

Date deposited: 01 Aug 2006
Last modified: 16 Mar 2024 03:40

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Contributors

Author: J. Vanthienen
Author: C. Mues ORCID iD
Author: G. Wets
Author: K. Delaere

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