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http://dx.doi.org/10.21219/jitam.2017.24.2.071

A Comparison of Reliability Factors of Software Reliability Model Following Lifetime Distribution Dependent on Pareto and Erlang Shape Parameters  

Kim, Hee Cheul (Namseoul Univ., Dept. of Industrial & Management Engineering)
Moon, Song Chul (Department of Computer Science, Namseoul University)
Publication Information
Journal of Information Technology Applications and Management / v.24, no.2, 2017 , pp. 71-80 More about this Journal
Abstract
Software reliability is one of the most elementary and important problems in software development In order to find the software failure occurrence, the instantaneous failure rate function in the Poisson process can have a constant, incremental or decreasing tendency independently of the failure time. In this study, we compared the reliability performance of the software reliability model using the parameters of Pareto life distribution with the intensity decreasing pattern and the shape parameter of Erlang life distribution with the intensity increasing and decreasing pattern in the software product testing. In order to identify the software failure environment, the parametric estimation was applied to the maximum likelihood estimation method. Therefore, in this paper, we compare and evaluate software reliability by applying software failure time data. The reliability of the Erlang and Pareto life models is shown to be higher than that of the Pareto lifetime distribution model when the shape parameter is higher and the Erlang model is more reliable when the shape parameter is higher. Through this study, the software design department will be able to help the software design by applying various life distribution and shape parameters, and providing basic knowledge using software failure analysis.
Keywords
Software Rreliability Model; Pareto Distribution; Erlang Distribution; Shape Parameter; NHPP;
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Times Cited By KSCI : 3  (Citation Analysis)
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