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Optimal test activity allocation for covariate software reliability and security models
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DOI：10.1016/j.jss.2020.110643.png)
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摘要
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Traditional software reliability growth models enable quantitative assessment of the software testing process by characterizing the fault detection in terms of testing time or effort. However, the majority of these models do not identify specific testing activities underlying fault discovery and thus can only provide limited guidance on how to incrementally allocate effort. Although there are several novel studies focused on covariate software reliability growth models, they are limited to model development, application, and assessment. This paper presents a non-homogeneous Poisson process software reliability growth model incorporating covariates based on the discrete Cox proportional hazards model. An efficient and stable expectation conditional maximization algorithm is applied to identify the model parameters. An optimal test activity allocation problem is formulated to maximize fault discovery. The proposed method is illustrated through numerical examples on two data sets. (C) 2020 Elsevier Inc. All rights reserved.
Keyword:
Software reliability growth model
Software security
Non-homogeneous Poisson process
Proportional hazards model
Covariates
Test activity allocation
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