skip to primary navigation skip to content

CBSU bibliography search

To request a reprint of a CBSU publication, please click here to send us an email (reprints may not be available for all publications)

Approximate modelling of cognitive activity with an expert system: A concept demonstrator for an interactive design tool.
Barnard, P., Wilson, M. & MacLean, A.
IBM Hursley Human Factors Report HF123 (pp. 1-37), Sept. 1986.
Year of publication:
CBU number:
Constructs from theoretical psychology can be used to decompose the representational and processing resources of cognition. This decomposition supports a form of “cognitive task analysis” through which user performance can be related to the underlying functioning of resources. Such functional relationships have been formalised and embodied in an expert system. This builds approximate models which describe cognitive activity associated with the execution of dialogue tasks. Attributes of these “cogntive task models” are used to derive likely properties of user performance. This report outlines the overall approach, descibes two examples of working knowledge bases and discusses their properties.