A tool-supported approach to inter-tabular verification


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).

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Description/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.

Item Type: Article
ISSNs: 0957-4174 (print)
Related URLs:
Keywords: decision tables, modular KBS, V&V
Subjects: H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management
Divisions: University Structure - Pre August 2011 > School of Management
ePrint ID: 36161
Date Deposited: 01 Aug 2006
Last Modified: 27 Mar 2014 18:22
URI: http://eprints.soton.ac.uk/id/eprint/36161

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