Abstract
Most current operator procedure documents are excessively wordy and not sufficiently keyed to the stimuli that should trigger operator actions. With the new approach discussed in this article, required operator actions are directly related to the specific visual or auditory stimuli received either from the equipment or from other individuals. Thus, given an indication, such as a console alarm or a voice request, the operator can immediately determine, from the manual, what actions to take. The meaning of each stimulus as well as the system implications of the operator's reactions are presented side-by-side with every stimulus-action step. Longer, more involved, decision and action sequences are presented in easily interpretable diagrammatic form.
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