IV. Human Factors Engineering and Industrial Ergonomics
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Whenever a worker or consumer produces or uses a product to perform a task, a man-machine system is created. This can be anything as simple as a carpenter using a hammer to drive a nail, or as complex as an astronaut landing a spaceship on the moon. The principles which govern the design of all such systems call for compatability between the human and inanimate components. But as such systems have grown more complex, the weakest portion frequently has become the human being. Thus designers must concentrate on improving this aspect of the system in order to assure that it will be able to achieve acceptable performance.