Mitigation is the phase where alarms found in the frequent alarm reports, are tested for the basic criteria of an alarm. If the alarm doesn’t satisfy the basic criteria, the alarm has to be removed and documentation to be updated to reflect the cause for removal.
During rationalisation, existing or potential alarms are systematically compared to the criteria for alarms set forth in the alarm philosophy. If, and only if the proposed or existing alarm meets the criteria, then the alarm set point, consequence, and operator action are documented, and the alarm is prioritised and classified according to the alarm philosophy. UReason employees have an extensive experience in supporting bad-actor mitigation and rationalisation processes.