Some Problems in the Measurement of Human Performance in Man–Machine Systems

Quantification of human performance in man–machine systems is receiving more and more attention in human factors work. Obstacles to such quantification include: (1) complexity and subjectivity of available quantification methods, (2) grossness of assumptions behind these methods, and (3) resistance of some psychologists. Research is needed (1) to develop an improved human performance data bank, (2) to develop improved models and methods, and (3) to validate quantification data, models and methods. Some research is being done in these areas.