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	Technika oceny i redukcji błędów ludzkich (HEART)	Skala Obciążenia Zadaniowego NASA (NASA-TLX)
Dziedzina	Czynniki ludzkie	Czynniki ludzkie
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1988	1988
Twórca	Jeremy C. Williams	Sandra G. Hart & Lowell E. Staveland
Typ	Expert-rated / Observational	Self-report
Źródło pierwotne	Williams, J. C. (1988). A data-based method for assessing and reducing human error to improve operational performance. In IEEE Fourth Conference on Human Factors and Power Plants (pp. 436-450). IEEE.	Hart, S. G., & Staveland, L. E. (1988). Development of NASA-TLX (Task Load Index): Results of empirical and theoretical research. In P. A. Hancock & N. Meshkati (Eds.), Human Mental Workload (pp. 139-183). Elsevier Science Publishers.
Inne nazwy	HEART	NASA-TLX, TLX
Pokrewne	4	4
Podsumowanie	The Human Error Assessment and Reduction Technique (HEART), developed by Jeremy Williams in 1988 for the nuclear industry, is a structured method for assessing the probability of human error in safety-critical tasks and identifying error reduction strategies. Unlike scales that measure subjective experience (workload, situational awareness), HEART is an analytical tool combining expert judgment, task analysis, and empirical error rates to quantify task-specific error probability and guide human factors interventions in high-stakes operations.	The NASA Task Load Index (NASA-TLX) is a multidimensional subjective workload assessment tool developed by Sandra Hart and Lowell Staveland at NASA's Ames Research Center in 1988. It measures six dimensions of cognitive and physical task load to quantify operator workload across diverse task domains, from aviation and process control to human-computer interaction. The TLX has become the gold standard for workload measurement in human factors research and applied settings.