Human Factor Definitions

Fitting the man to the job and the job to the man - Chapanis

Human Factors is concerned to optimise the relationship between people and their activities, by the systematic application of human sciences, integrated within the framework of systems engineering   - Elwyn Edwards

Human Factors refers to the study of human capabilities and limitations in the workplace. Human Factors include, but are not limited to, such attributes as human physiology, psychology, work place design, environmental conditions, human-machine interface, and more. Human Factors researchers study system performance. That is, they study the interaction of humans, the equipment they use, the written and verbal procedures and rules they follow, and the environmental conditions of any system.                     FAA Human Factors Guide for Aviation Maintenance

Human Factors and ergonomics and engineering psychology are roughly equivalent terms used for the field of science concerned with the optimisation of the relationship between people and the machines they operate through the systematic application of human sciences integrated within the framework of systems engineering. Human Factors has been more widely used in the USA, ergonomics has been more widely used outside of the USA, and engineering psychology has been more widely used in academia.                                                              Jensen R. 

Human Factors focuses on human beings and their interaction with products, equipment, facilities, procedures, and environments used in work and every-day living. The emphasis is on human beings (as opposed to engineering, where the emphasis is more on strictly technical engineering considerations) and how the design of things influences people. Human Factors, then, seeks to change the things people use and the environments in which they use these things to better match the capabilities, limitations, and needs of people.                                    Human Factors in Engineering and Design, Sanders M.S. and McCormick J. McGraw-Hil

Within the FAA, human factors entails a multidisciplinary effort to generate and compile information about human capabilities and limitations and apply that information to equipment, systems, facilities, procedures, jobs, environments, training, staffing, and personnel management for safe, comfortable, effective human performance. FAA

Human factors refer to environmental, organisational and job factors, and human and individual characteristics which influence behaviour at work in a way which can affect health and safety HSE

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