Modification and Further Evaluation of a Digital Man-Machine Simulation Model

摘要

A digital computer simulation model was previously derived and employed for simulating the performance of the operator(s) in a man-machine system. The technique is based on an analysis of the performance of each operator, arranged into ordered, discrete actions called 'subtasks,' and the compilation for each of certain source data. These data, together with selected parameter values (e.g., the time allotted for task performance), are placed in punched card form and introduced into a digital computer which sequentially simulates, according to the rules of the model, the 'performance' of each subtask by each operator. The normal sequence of subtasks may be modified if actions have to be skipped or repeated due to failure of a subtask by either operator or as a result of operator decisions. A simulation is completed when the operators either use all allotted time or successfully complete the task. Results are recorded indicating the areas of operator overload, failure, idle time, peak stress, etc., for the given set of selected parameters. Repetitions of the simulation, with different parameter values, yield a range of records. (Author)