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Knowledge in context: A strategy for expert system maintenance

  • P. Compton
  • R. Jansen
Knowledge Engineering
Part of the Lecture Notes in Computer Science book series (LNCS, volume 406)

Abstract

Knowledge engineering, obtaining knowledge from experts and incorporating it into expert systems is difficult and time consuming. We suggest that these difficulties arise because experts never report on how they reach a decision, rather they justify why the decision is correct. These justifications vary markedly with the context in which they are required, but in context they are accurate and adequate; the difficulties in knowledge engineering arise from taking the justification out of context. We therefore hypothesise that knowledge engineering may be obviated, particularly in the long term maintenance of expert systems, if the rules experts provide are used in the context in which they are given. This paper describes work in progress to test this hypothesis.

Keywords and phrases

maintenance context expert systems knowledge engineering knowledge representation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • P. Compton
    • 1
  • R. Jansen
    • 1
    • 2
  1. 1.Garvan Institute of Medical ResearchSt. Vincent's HospitalSydneyAustralia
  2. 2.CSIRO Division of Information TechnologyMacquarie CentreSydneyAustralia

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