The study of the human as a controller of processes is becoming more important as industries become increasingly mechanized. This study attempts to model the human process controller when he is initiating or optimizing the process. A laboratory simulation of a two input variable and one output variable process is designed similar to that employed by Rigby (1972). Thirty-five (35) human subjects are run under several different conditions. Measures of human strategy along with system-state variables which humans might use to determine their strategy are developed and compared. On the basis of these data, a model is proposed of the human operator during the initial stages of controlling a process.
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