The question of action should be based on the RPN, not severity alone. If the severity is high, we at least think about any changes that might be made.
Often times, we have no control on what the vehicle does when our parts fail� This is determined by the car companies and we all know they are infinitely wise in areas of quality and safety. If changes are not feasible, we then focus on occurrence and detection to bring the RPN into an acceptable level.
