Optimum release time for software systems based on reliability and cost criteria

Cost optimization of a software reliability growth model with imperfect debugging and a fault reduction factor

“…The optimal software release time is the time that customers get the software C185 at minimum cost and a high level of reliability. Okumoto and Goel [12] proposed the optimum release time for software systems based on reliability and cost criteria. The optimal testing resource allocation during module testing considering cost, testing effort and reliability was evaluated by Jha et al [5].…”

Optimal sofware release policies for software reliability growth models under imperfect debugging

“…Our release policîes also tend to minimise such a wasteful expenditure. Optimal release policies for similar models uader perfect debugging can be found in Okumoto and Goel [5] 5 Yamada et al [12,13]. Finally numerical examples are also presented at the end.…”

Software reliability modeling and cost estimation incorporating testing-effort and efficiency

“…Okumoto and Goel [11] first discussed the software optimal release policy from the cost-benefit viewpoint. The total cost of testing-effort expenditures at time T, C1(T), can be expressed as [1-3, 7, 9- (12) where T LC =software life-cycle length C 1 =cost of correcting an error during testing C 2 =cost of correcting an error during operation C 3 =cost of testing per unit testing-effort expenditures.…”

“…A number of Software Reliability Growth Models (SRGMs) have been proposed [12,26]. Among these models, Goel and Okumoto considered an NHPP as the stochastic process to describe the fault process [11]. Yamada et al [1][2][3] modified the G-O model and incorporated the concept of testing-effort in an NHPP model to get a better description of the software fault phenomenon.…”

“…But this may not be realistic since testers typically want to test for all possible valuable failure data, even the cost of testing is significant. Okumoto and Goel [11] first discussed the software optimal release policy from the cost-benefit viewpoint and proposed a software reliability cost model. It was shown that the optimal software release time can be obtained based on a cost criterion when minimizing the total expected cost.…”