Integrating the quantitative and qualitative aspects of safety assessment

Knight, J., Wasson, K.,Aiello, M.A.,McDermid, J.

Digital Avionics Systems Conference（2012）

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摘要

We present an approach to the integration of the quantitative and qualitative aspects of safety assessment to facilitate the certification of complex systems using a quantitative criteria. The approach is based on documenting all of all of the relevant safety factors in a system safety case and then transitioning all of the qualitative factors to conservative quantitative factors or to conditions in conditional probabilities. We illustrate the technique using a hypothetical UAS system.

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关键词

probability,safety-critical software,complex systems,conditional probabilities,hypothetical uas system,qualitative factors,quantitative criteria,quantitative factors,safety assessment,safety factors,system safety case,measurement,statistical analysis,certification

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