Accession Number:

ADA136790

Title:

Explaining Complex Engineered Devices.

Descriptive Note:

Technical rept.,

Corporate Author:

BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA

Personal Author(s):

Report Date:

1983-12-01

Pagination or Media Count:

50.0

Abstract:

This paper presents the outline of an algorithm which generates summary explanations of and answers questions about complex engineered devices. The algorithm uses two domain models an expert model of the machine, and a model of the students device understanding. Also required is an inference engine which can perform qualitative simulations of the device engine from the expert model. Given these prerequisites, the algorithm recursively describes the device in a series of ever more detailed passes. In each pass the device is depicted with a strict sequence of topics the devices role, function, structure, and then its mechanism. The explanatory algorithm is interesting not only for its potential utility in computer aided instruction but also for the constraints it sets on the contents of an expert tutors mental model of an engineered device. Author

Subject Categories:

  • Humanities and History
  • Computer Hardware
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE