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Is There a Magic Number 7 (to the Minus 1): The Benefits of Imperfect Diagnostic Automation: A Synthesis of the Literature.
| 题名： | Is There a Magic Number 7 (to the Minus 1): The Benefits of Imperfect Diagnostic Automation: A Synthesis of the Literature. |
| 作者： | wickens, c. d. dixon, s. r. |
| 关键词： | human performance, man machine systems, aviation, reliability, workloads(psychophysiology), benefits, human factors engineering, regression analysis |
| 摘要： | This review of the literature examines in a quantitative fashion, how the level of imperfection or unreliability of diagnostic automation affects the performance of the human operator who is jointly consulting that automation and the raw data itself. The data from 20 different studies were used to generate 35 different data points that compared performance with varying levels of unreliability, with that of a non-automated baseline condition. A regression analysis of benefits/costs relative to baseline was carried out, and revealed a strong linear function of benefits with reliability. The analysis revealed that a reliability of 0.70 was the crossover point below which unreliable automation was worse than no automation at all. The analysis also revealed that performance was more strongly affected by reliability in high workload conditions, implicating the role of workload-imposed automation dependence in producing this relationship, and suggesting that humans tend to protect performance of concurrent tasks from imperfection of diagnostic automation. / NOTE: Technical rept. / Supplementary Notes: Prepared in cooperation with Micro Analysis and Design, Boulder, CO. Sponsored by Department of the Army, Washington, DC. / |
| 报告类型： | 科技报告 |
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