"Prior to the concept of system safety, system designers and engineers relied predominantly on a trial-and-error method of achieving safe design which was somewhat successful in an era when system complexity was relatively simple compared with those of subsequent development. System Safety is an element of systems management involving the application of scientific and engineering principles for the timely identification of hazards, and initiation of those actions necessary to prevent or control hazards within the system. ...
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"Prior to the concept of system safety, system designers and engineers relied predominantly on a trial-and-error method of achieving safe design which was somewhat successful in an era when system complexity was relatively simple compared with those of subsequent development. System Safety is an element of systems management involving the application of scientific and engineering principles for the timely identification of hazards, and initiation of those actions necessary to prevent or control hazards within the system. Instead of trial-and-error method, which can be costly or deadly, new approaches rely on a identify, analyze, and eliminate method to perceive issues before they arise. These techniques are used in many industries from government (Department of Defense, NASA, the FAA, and the DoE) as well as in the industrial workplace"--
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