The FAA Safety risk management guidance The 5 step process dated september 14,2012 states one of the fundamental principles of system safety is the safety order of precedence in eliminating controlling or mitigating a hazard
safety professionals use the techniques listed in the safety order of precedence in priority order for reducing risk The priority order is
1.Design the hazard out
2.Provide physical guards barriers
3.Provide warning devices
4.Train people
5.Communicate the hazard