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Refinement in response to validation.

Craw, Susan; Sleeman, D.


D. Sleeman


Knowledge-based systems (KBSs) are being applied in ever increasing numbers. In parallel with the development of knowledge acquisition tools is the demand for mechanisms to assure their quality, particularly in safety critical applications. Quality assurance is achieved by checking the contents of the KBS at various stages throughout its life cycle. But how does testing for quality assurance aggravate the already well-known knowledge acquisition bottleneck? The partial automation of checking and correcting the knowledge base (KB) is an obvious approach to reducing the bottleneck, but also a more routine treatment of checking will provide improved facilities for quality assurance. In addition to identifying the occurrence offaults, this paper suggests that responding to faults identified by validation is both useful and important. Therefore, refinement should be thought of as a companion to validation.


CRAW, S. and SLEEMAN, D. 1995. Refinement in response to validation. Expert systems with applications, 8(3), pages 343-349. Available from:

Journal Article Type Article
Acceptance Date Jul 31, 1995
Online Publication Date Sep 22, 1999
Publication Date Sep 30, 1995
Deposit Date Mar 22, 2007
Publicly Available Date Mar 22, 2007
Journal Expert systems with applications
Print ISSN 0957-4174
Electronic ISSN 1873-6793
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 8
Issue 3
Pages 343-349
Keywords Knowledge based systems; Quality assurance; Validation tools
Public URL


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