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| 운영자 수행 평가 척도 (OPAS)× | 작업부하 프로파일(WP)× | |
|---|---|---|
| 분야 | 인간공학 | 인간공학 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1993 | 1996 |
| 창시자≠ | William W. Wierwille, Frank T. Eggemeier | Pamela S. Tsang & Veronica L. Velazquez |
| 유형≠ | Observer-rated / Self-rated | Self-report |
| 원전≠ | Wierwille, W. W., & Eggemeier, F. T. (1993). Recommendations for mental workload measurement in a test and evaluation environment. Human Factors, 35(2), 263–281. DOI ↗ | Tsang, P. S., & Velazquez, V. L. (1996). Diagnosticity and multidimensional subjective workload ratings. Ergonomics, 39(3), 358–381. DOI ↗ |
| 별칭≠ | OPAS, Performance Rating Scale | WP |
| 관련 | 4 | 4 |
| 요약≠ | The Operator Performance Assessment Scale (OPAS), formalized by Wierwille and Eggemeier in 1993, is a structured rating method for assessing operator task performance on multiple dimensions (primary task accuracy, secondary task accuracy, task completion time, error rate, procedure adherence) in applied settings. OPAS bridges subjective workload perception (NASA-TLX, situational awareness) and objective behavioral metrics by capturing expert judgment of performance quality across multiple performance channels, enabling holistic evaluation of how well operators managed task demands. | The Workload Profile (WP), developed by Pamela Tsang and Veronica Velazquez in 1996, is a multidimensional subjective workload assessment tool that refines the NASA Task Load Index by allowing respondents to assign relative importance weights to workload dimensions dynamically, rather than through separate pairwise comparisons. The WP divides the 0-100 point workload scale into segments corresponding to distinct cognitive and attentional demands, enabling respondents to visually allocate load across dimensions and thereby create a profile that reflects the task-specific pattern of burden. |
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