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Deriving a construct from site specific data: a knowledge level analysis

Published online by Cambridge University Press:  27 February 2009

Anastasios Dimitropoulos
Anastasios Dimitropoulos
Affiliation:
Department of Informatics, T.Y.P.A. Building, Panepistimioupolis, University of Athens, Zografou 157 71, Athens, Greece
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Abstract

In wood engineering design, an important task is the derivation of a construct from site specific data. Human experts perform the task in two phases, first qualitatively and then quantitatively in a hierarchical fashion. COWEN (Computer Wood ENgineer) is a fully implemented research prototype expert system that performs the qualitative phase and makes two contributions to the technology of expert systems. The first contribution is a Knowledge Level specification of the task prior to considering Symbol Level implementation. This is important because expert systems have been defined as mostly symbolic processors in the literature. The second contribution is that this Knowledge Level specification has led to the conclusion that additional qualitative sciences, besides physics and geometry, are needed for an engineering task. This is an interesting discovery because qualitative reasoning research in Artificial Intelligence (AI) has approached engineering design from the viewpoints of physics and geometry only.

Type
Research Article
Information
AI EDAM , Volume 6 , Issue 3 , August 1992 , pp. 163 - 176
Copyright
Copyright © Cambridge University Press 1992

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