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Abstract

Several cases of deviations of human operator problem-solving strategies are analysed in the conceptual framework provided by COSIMO (COgnitive SImulation MOdel), a computer-based model of an operator. The following deviations of operator problem-solving are simulated by modifying COSIMO parameters: (1) Cognitive lockup, when an operator becomes fixed on a diagnosis and tries to take into account all possible explanations, without regard to their relevance to the current situation. (2) Cognitive inertia, when an operator fails to interpret a change in the plant configuration linked with an incident. (3) Unadapted change, when an operator changes his current line of reasoning on the basis of the most salient event, and fails to assess the effect of contingent past events upon the current change.

Additional information

Authors: CACCIABUE P C, JRC Ispra (IT);DECORTIS F, JRC Ispra (IT);DROZDOWICZ B, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Fifth European Conference on Cognitive Ergonomics, Urbino (IT), Sept. 3-6, 1990
Availability: Available from (1) as Paper EN 35623 ORA
Record Number: 199011483 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en
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