FMEA is proactive risk management. Instead of waiting for failures to happen and reacting, you systematically ask: 'What COULD go wrong, how bad would it be, and would we even catch it?' The RPN score (Severity × Occurrence × Detection) mathematically prioritizes which risks to attack first. High Severity + Low Detection = your biggest blind spot. That's where you invest your energy.
Don't try to reduce all RPNs to zero — that's impossible. Focus on any RPN above 200 or any item with Severity ≥ 8 regardless of RPN. Also: Detection is often the easiest score to improve. Adding an inspection step or poka-yoke device can dramatically drop Detection score without changing the process itself.