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http://dx.doi.org/10.7469/JKSQM.2011.39.2.170

A Study on Optimal Software Maintenance Policies with Warranty Period  

Nam, Kyung-H. (Department of Applied Information Statistics, Kyonggi University)
Kim, Do-Hoon (Department of Applied Information Statistics, Kyonggi University)
Publication Information
Journal of Korean Society for Quality Management / v.39, no.2, 2011 , pp. 170-178 More about this Journal
Abstract
In general, a software fault detection phenonenon is described by a software reliability model based on a nonhomogeneous Poisson process(NHPP). In this paper, we propose a software reliability growth model considering the differences of the software environments in both the testing phase and the operational phase. Also, we consider the problem of determining the optimal release time and the optimal warranty period that minimize the total expected software cost which takes account of periodic software maintenance(e.g. patch, update, etc). Finally, we analyze the sensitivity of the optimal release time and warranty period based on the fault data observed in the actual testing process.
Keywords
Nonhomogeneous Poisson Process; Software Reliability Growth Model; Mean Value Function; Software Release Time; Warranty Period; Total Expected Software Cost;
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