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An Optimal Release Problem Based on a Testing-Effort Dependent Software Reliability Model

Hiroshi OHTERA, Shigeru YAMADA, Hiroyuki NARIHISA

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Summary :

This paper discusses an optimal software release problem, based on a software reliability growth model incorporating the time-dependent behavior of testing-effort expenditures in the software testing. The problem presents an optimum release time when to stop testing and to be ready for release to the user. In particular, we consider a penalty cost due to delay in the scheduled software delivery time. Using a testing-effort function described a Weibull curve, a software reliability growth process in the error detection phenomenon in software testing is modeled based on a nonhomogeneous Poisson process. The testing-effort parameters and the reliability growth parameters in the model are estimated by a modified least-squares estimation and by a maximum-likelihood estimation, respectively. Based on the software reliability growth mode, the optimal software release problem is formulated by using the total expected software cost to be minimized. Further, numerical examples are presented for illustrations.

Publication
IEICE TRANSACTIONS on transactions Vol.E71-E No.11 pp.1140-1145
Publication Date
1988/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Software Systems

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