ABSTRACT

Workload has been measured as stand-alone performance or secondary task performance or as subjective measures or in digital simulation. Workload has been defined as a set of task demands, as effort, and as activity or accomplishment. The task demands are the goals to be achieved, the time permitted to perform the task, and the performance level to which the task is to be completed. The factors affecting the effort expended are the information and equipment provided, the task environment, the participant’s skills and experience, the strategies adopted, and the emotional response to the situation. Performance has been used to measure workload. These measures assume that, as workload increases, the additional processing requirements will degrade performance. G. J. Funke et al. proposed a theory of team workload as well as subjective, performance, physiological, and strategy shift measures.