Aiding fault diagnosis under symptom masking in dynamic systems
- 10 November 1999
- journal article
- research article
- Published by Informa UK Limited in Ergonomics
- Vol. 42 (11), 1472-1481
- https://doi.org/10.1080/001401399184820
Abstract
In large-scale dynamic systems such as power plants, fault diagnosis becomes more difficult owing to changing system states. Symptoms can be obscured by other symptoms or disappear as the operator proceeds with diagnosis or compensation. Such a symptom-masking phenomenon increases the operator's memory load, constrains diagnostic strategies and, hence, degrades the performance of the diagnosis. This study investigates the effects of a symptom bookkeeping aid (SB-aid) for diagnostic performance in a simulated sub-system of nuclear power plants. The results show that this SB-aid improved overall performance. Further analyses provide insights on the sources of cognitive difficulties and on the possible direction of supporting human diagnosis in dynamic plants.Keywords
This publication has 11 references indexed in Scilit:
- Guidelines for computerized presentation of emergency operating proceduresNuclear Engineering and Design, 1996
- Individual differences and the effects of an information aid in performance of a fault diagnosis taskErgonomics, 1996
- Inducing effective operator control through ecological interface designInternational Journal of Human-Computer Studies, 1996
- Strategies of failure diagnosis in computer-controlled manufacturing systems: empirical analysis and implications for the design of adaptive decision support systemsInternational Journal of Human-Computer Studies, 1995
- Human performance in fault diagnosis: can expert systems help?Interacting with Computers, 1995
- The effect of scrolling, hierarchically paged displays and ability on fault diagnosis performanceErgonomics, 1988
- Deep-reasoning fault diagnosis: an aid and a modelIEEE Transactions on Systems, Man, and Cybernetics, 1988
- A Model-Based Approach to Policy Analysis in Library NetworksIEEE Transactions on Systems, Man, and Cybernetics, 1979
- Measures of Complexity of Fault Diagnosis TasksIEEE Transactions on Systems, Man, and Cybernetics, 1979
- Human Problem Solving Performance in a Fault Diagnosis TaskIEEE Transactions on Systems, Man, and Cybernetics, 1978