Real-Time Expert System Interfaces, Cognitive Processes, and Task Performance: An Empirical Assessment

In this experiment we investigated the effect of different real-time expert system interfaces on operators' cognitive processes and performance. The results supported the principle that a real-time expert system's interface should focus operators' attention on where it is required mos...

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Bibliographic Details
Published in:Human factors 1993-06, Vol.35 (2), p.243-261
Main Authors: Adelman, Leonard, Cohen, Marvin S., Bresnick, Terry A., Chinnis, James O., Laskey, Kathryn B.
Format: Article
Language:English
Subjects:
Aircraft
Biological and medical sciences
Cognition & reasoning
Cognition - physiology
Cognitive ability
Computer Systems
Ergonomics. Human factors
Experiments
Expert systems
Fundamental and applied biological sciences. Psychology
Humans
Interfaces
Occupational psychology
Operators
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Real time
Space life sciences
Task Performance and Analysis
User-Computer Interface
Workload
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Summary:In this experiment we investigated the effect of different real-time expert system interfaces on operators' cognitive processes and performance. The results supported the principle that a real-time expert system's interface should focus operators' attention on where it is required most. However, following this principle resulted in unanticipated consequences. In particular, it led to inferior performance for less critical, yet important cases requiring operators' attention. For such cases operators performed better with an interface that let them select where they wanted to focus their attention. Having a rule generation capability improved performance with all interfaces but did so less than hypothesized. In all cases performance with different interfaces and a rule generation capability was explained by the effect of the interfaces on cognitive process measures.
ISSN:0018-7208
1547-8181
DOI:10.1177/001872089303500204