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SAE AIR5113 2002 Edition, June 1, 2002
Legal Issues Associated with the Use of Probabilistic Design Methods
Description / Abstract:
This SAE Aerospace Information Report (AIR) addresses legal issues
concerning use of
non-deterministic methods in the design and/or analysis of systems.
The investigation includes an
assessment of legal precedent for use of these methods both in the
aerospace industry and in other
non-aerospace engineering contexts. The investigation is primarily,
but not exclusively, focused on
United States of America Federal and State Law.
This document is not intended to be used in any way as a "legal justification" for the use of Probabilistic Methods - it is simply a compilation of experience and past precedent.
Many engineers note that the use of Probabilistic Methods for failure risk assessment implies an acceptance that any design will have a finite, albeit small, risk of loss of function, and express concern that this could be seized upon in a Court of Law to indicate that the design was "unsafe". This report helps to allay some of these fears by presenting the logic used in past legal determinations to assess liability following loss of function of artifacts designed using both deterministic and probabilistic engineering methods.
Some recommendations are also provided in the report of "good practice" to be followed when using non-deterministic design methods - most of which are equally applicable to deterministic design methods.
This document is not intended to be used in any way as a "legal justification" for the use of Probabilistic Methods - it is simply a compilation of experience and past precedent.
Many engineers note that the use of Probabilistic Methods for failure risk assessment implies an acceptance that any design will have a finite, albeit small, risk of loss of function, and express concern that this could be seized upon in a Court of Law to indicate that the design was "unsafe". This report helps to allay some of these fears by presenting the logic used in past legal determinations to assess liability following loss of function of artifacts designed using both deterministic and probabilistic engineering methods.
Some recommendations are also provided in the report of "good practice" to be followed when using non-deterministic design methods - most of which are equally applicable to deterministic design methods.
SAE AIR5113 2002 Edition, June 1, 2002
Legal Issues Associated with the Use of Probabilistic Design Methods