As Low As Reasonably Practicable

Posted by GSNAdmin on December 07, 2011
GSN Patterns

This pattern provides a framework for arguing that identified risks in a system have been sufficiently addressed in accordance with the ALARP principle.

Author: Tim Kelly

Last Modified: 22/2/1999


This pattern was developed for two reasons:

  1. To argue compliance with the ALARP principle at the highest level when addressing system level hazards.
  2. To provide a more structured approach to presenting a ‘Hazard Avoidance’ argument (See Hazard Avoidance Pattern) by showing differing treatment of hazards according to their associated risk.



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