NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Robust Derivation of Risk Reduction StrategiesEffective risk reduction strategies can be derived mechanically given sufficient characterization of the risks present in the system and the effectiveness of available risk reduction techniques. In this paper, we address an important question: can we reliably expect mechanically derived risk reduction strategies to be better than fixed or hand-selected risk reduction strategies, given that the quantitative assessment of risks and risk reduction techniques upon which mechanical derivation is based is difficult and likely to be inaccurate? We consider this question relative to two methods for deriving effective risk reduction strategies: the strategic method defined by Kazman, Port et al [Port et al, 2005], and the Defect Detection and Prevention (DDP) tool [Feather & Cornford, 2003]. We performed a number of sensitivity experiments to evaluate how inaccurate knowledge of risk and risk reduction techniques affect the performance of the strategies computed by the Strategic Method compared to a variety of alternative strategies. The experimental results indicate that strategies computed by the Strategic Method were significantly more effective than the alternative risk reduction strategies, even when knowledge of risk and risk reduction techniques was very inaccurate. The robustness of the Strategic Method suggests that its use should be considered in a wide range of projects.
Document ID
20110016081
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Richardson, Julian
(Research Inst. for Advanced Computer Science Moffett Field, CA, United States)
Port, Daniel
(Hawaii Univ. HI, United States)
Feather, Martin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
March 3, 2007
Subject Category
Mathematical And Computer Sciences (General)
Meeting Information
Meeting: 2007 IEEE Aerospace Conference
Location: Big Sky, MT
Country: United States
Start Date: March 3, 2007
End Date: March 10, 2007
Sponsors: Institute of Electrical and Electronics Engineers
Funding Number(s)
CONTRACT_GRANT: NNA05CS31A
Distribution Limits
Public
Copyright
Other
Keywords
risk reduction

Available Downloads

There are no available downloads for this record.
No Preview Available