Quick Reference For Bowtie Barriers
Recall bowtie terms and use them to challenge weak barrier conversations.
Core terms What is the difference between a hazard and a top event? The hazard is the normal risky source or activity; the top event is the moment control over that hazard is lost. Example: energized transformer is the hazard; transformer fire is the top event. Barrier type Preventive barrier or recovery barrier? Both matter. Do not count recovery controls as if they prevent the event. Weak barrier claim We have procedures, so the risk is controlled. A risk review is accepting generic controls. Your line Which threat does that procedure interrupt, who owns it, and how do we know…
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