4. Operating Integrity
Good operating integrity
minimizes the number of holes,
minimizes the time that
temporary holes exist and limits
their size.
PHA, Operating Procedures & PSI, SCE Bypass, PTW, JHA, MOC, SOL,
Operating Envelopes, Alarm Management, Competency
Poor operating integrity increase
the number of holes, increases
the time that temporary holes
exist and increases their size.
Editor's Notes
Key Notes:
The bowtie model provides for the assessment of hazards in order to:
Identify the potential hazard release, escalation and consequence scenarios,
Identify the controls (i.e. barriers and escalation factor controls) required to effectively manage these Hazards (e.g. the HSE critical Elements, HSE Critical Tasks and Procedures)
Support the ALARP demonstration
Provide visibility and communicate the above information to those responsible for managing, or who may be affected by the hazards
In the event of an event of an incident, have the ability to relate causes of incidents to the controls that failed, thus enabling improved incident learning and prevention.