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Risk attitudes in risk-based design: Considering risk attitude using utility theory in risk-based design

Published online by Cambridge University Press:  02 November 2012

Douglas Van Bossuyt ,
Chris Hoyle ,
Irem Y. Tumer  and
Andy Dong
Douglas Van Bossuyt*
Affiliation:
Complex Engineered Systems Design Laboratory, School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, Oregon, USA
Chris Hoyle
Affiliation:
Complex Engineered Systems Design Laboratory, School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, Oregon, USA
Irem Y. Tumer
Affiliation:
Complex Engineered Systems Design Laboratory, School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, Oregon, USA
Andy Dong
Affiliation:
Faculty of Engineering and Information Technologies, University of Sydney, Sydney, Australia
*
Reprint requests to: Douglas Van Bossuyt, Complex Engineered Systems Design Laboratory, School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, 204 Rogers Hall, Corvallis, OR 97331, USA; E-mail: douglas.vanbossuyt@gmail.com
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Abstract

Engineering risk methods and tools account for and make decisions about risk using an expected-value approach. Psychological research has shown that stakeholders and decision makers hold domain-specific risk attitudes that often vary between individuals and between enterprises. Moreover, certain companies and industries (e.g., the nuclear power industry and aerospace corporations) are very risk-averse whereas other organizations and industrial sectors (e.g., IDEO, located in the innovation and design sector) are risk tolerant and actually thrive by making risky decisions. Engineering risk methods such as failure modes and effects analysis, fault tree analysis, and others are not equipped to help stakeholders make decisions under risk-tolerant or risk-averse decision-making conditions. This article presents a novel method for translating engineering risk data from the expected-value domain into a risk appetite corrected domain using utility functions derived from the psychometric Engineering Domain-Specific Risk-Taking test results under a single-criterion decision-based design approach. The method is aspirational rather than predictive in nature through the use of a psychometric test rather than lottery methods to generate utility functions. Using this method, decisions can be made based upon risk appetite corrected risk data. We discuss development and application of the method based upon a simplified space mission design in a collaborative design-center environment. The method is shown to change risk-based decisions in certain situations where a risk-averse or risk-tolerant decision maker would likely choose differently than the expected-value approach dictates.

Keywords

Decision SupportEngineering Domain-Specific Risk-Taking TestRisk AppetiteRisk-Based DesignUtility Theory
Type
Special Issue Articles
Information
AI EDAM , Volume 26 , Issue 4: Intelligent Decision Support and Modeling , November 2012 , pp. 393 - 406
Copyright
Copyright © Cambridge University Press 2012

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