Abstract
Risk Priority Numbers (RPNs) are a powerful qualitative method for discovering and prioritising critical issues in early design phases. They have become very popular in particular as a tool in automotive or software Failure Modes, Effects, and Criticality Analysis (FMECA). However, it has been shown that the existing RPN concept is seriously flawed. This paper presents a theoretical approach towards a new RPN concept, called the Improved Risk Priority Number (IRPN), which is based on a sound model of risk and can be used with equal ease, but does not suffer from the shortcomings of the existing RPN concept. A particular example from a railway application is discussed.
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References
Bowles, J.: Failure Modes, Effects, And Criticality Analysis: What It Is And How To Use It, Tutorial, RAMS 1999
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Bowles, J.: An Assessment of RPN Prioritization in a Failure Modes Effects and Criticality Analysis, Proc. RAMS2003, Tampa, January 2003
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© 2004 Springer-Verlag London
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Braband, J. (2004). Definition and Analysis of a New Risk Priority Number Concept. In: Spitzer, C., Schmocker, U., Dang, V.N. (eds) Probabilistic Safety Assessment and Management. Springer, London. https://doi.org/10.1007/978-0-85729-410-4_322
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DOI: https://doi.org/10.1007/978-0-85729-410-4_322
Publisher Name: Springer, London
Print ISBN: 978-1-4471-1057-6
Online ISBN: 978-0-85729-410-4
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