Safety Margin

Posted by GSNAdmin on December 07, 2011
GSN Patterns

The intent of this pattern is to create arguments that instil a high degree of confidence in the satisfaction of a goal and are resilient to change and criticism.

Author: Tim Kelly

Last Modified: 22/2/1999



Arguments that only just manage to satisfy requirements are less convincing and more vulnerable to the effects of change.

  • If a challenge is made that questions the extent of the claims made by an argument, and those claims only just satisfy the target requirement, then satisfaction of that requirement is immediately questioned.
  • Especially with probabilistic arguments relying on a degree of estimation, unless there is extreme confidence in the claims derived, a claim that only just satisfies the target requirement may be considered less than compelling.

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