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system safety engineering

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occupational hazard

system life cycle

Over the years there has been considerable confusion with the concepts of safety, risk, and hazard. The major problem is that many people tend to interchange the words as if they mean the same. On top of that, different industries often define the concepts differently.

The most important thing to remember is that system safety engineering is a combination of management and systems engineering practices applied to the evaluation and reduction of risk in a system and its operation. The objective of system safety is to identify hazards resulting from the use or operation of a system and to eliminate or reduce the hazards to an acceptable level of risk.