5. Exploit the results
When the bow-tie is drawn up as part of an ESD for an ICPE, the PCIG decree at arrêté du 29 septembre 2005 requires the hazardous phenomena and potential accidents identified in the hazard study to be positioned on the probability scale presented in the "Probability scale" table. This scale comprises five probability classes ranging from A (most likely) to E (least likely). The occurrence values obtained by bow-tie quantification can then be compared with the regulatory scale. A probability class is therefore assigned to each hazardous event.
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Bibliography
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Bibliography
Yves Mortureux — Fault, cause and event trees — SE 4050
Yves Mortureux — Dependability: risk management methods — BM 5008
Olivier Iddir — The bow tie: a method for quantifying major risk — SE 4055
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