A Cost Analysis of Systems Subject to Random Field Environments and Reliability

We present a generalized cost model subject to random field environments with considerations of cost to remove failures during testing and warranty periods, and penalty cost due to the system failures. We also determine the optimal release time policies that minimize the expected system cost. Many s...

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Bibliographic Details
Published inIEEE transactions on systems, man and cybernetics. Part C, Applications and reviews Vol. 40; no. 4; pp. 429 - 437
Main Authors Sgarbossa, Fabio, Hoang Pham
Format Journal Article
LanguageEnglish
Published IEEE 01.07.2010
Subjects
Application software
Cost engineering
Costs
Cybernetics
Environmental factors
Field random environments
Manufacturing industries
nonhomogeneous Poisson process (NHPP)
optimal release time
Optimization
Policies
Prototypes
reliability growth
Shape
Software reliability
System failures
System reliability
System testing
Systems engineering and theory
testing environments
Warranties
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ISSN1094-6977
1558-2442
DOI10.1109/TSMCC.2010.2042713

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Summary:We present a generalized cost model subject to random field environments with considerations of cost to remove failures during testing and warranty periods, and penalty cost due to the system failures. We also determine the optimal release time policies that minimize the expected system cost. Many scientific contributions have been developed in software reliability modeling, while none has studied the manufacturing or industrial system reliability growth yet, considering also the differences between testing and operating environments. The application of the proposed model, in comparison to the nonhomogenous Poisson process Goel-Okumoto model, to an industrial application is discussed to illustrate how the proposed model can be used in practice.
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ISSN:1094-6977
1558-2442
DOI:10.1109/TSMCC.2010.2042713