ABSTRACT
As mentioned by Swain and Guttmann (1983), human reliability is the probability of the successful conclusion of a procedure or task by the operator or team in any stage of the system operation, considering the minimal necessary time (when the time dimension is relevant). Human reliability analysis (HRA) evaluates human actions in a system, considering the factors which contribute to his performance, and it commonly shows incompatibilities among human limitations and the conditions imposed by work. Some of these factors are related to time restrictions, excessive workloads, inadequate training of operators, inadequate procedures, task complexity, and so on.
