Adopting the bowtie methodology does not mean re-inventing Safety Management Systems (SMS); it
is simply a tool that can be used to fulfil certain SMS goals in an appropriate, efficient and
The two main deliverables of the bowtie methodology are risk assessment and risk communication
but it can also be applied to benefit other aspects of the SMS.
Clearly define, communicate and document lines of safety accountability throughout the
organisation by linking accountable post holders to controls.
Identify and manage how change may affect safety by reference to ‘before and after’ bowties.
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