An Expert-System Shell Using Structured Knowledge: An Object-Oriented Approach

  • Authors:
  • K. S. Leung;M. H. Wong

  • Affiliations:
  • Chinese Univ., of Hong Kong, Hong Kong;-

  • Venue:
  • Computer
  • Year:
  • 1990

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Abstract

An architecture for an expert-system shell that mixes declarative nd procedural knowledge, overcoming a major problem of conventional shells, is presented. The prototype shell uses structured knowledge representations and its built-in database interface not only allows automatic extraction of data from a database management system but also provides a fuzzy database query facility. The shell's object-oriented approach to knowledge representation supports data and knowledge acquisition and management. Another feature is encapsulation which prevents object manipulation except by defined operations. A comparison of representation methods and two case studies showing System X-I's power and flexibility are included.