基于改进G-O费用模型的软件最优发布研究  

Optimum Software Release Based on G-O Model and VaR Constraint

作　　者：谭鸿健[1] 杨雅惠[1] 董明刚[1] 

机构地区：[1]桂林理工大学计算机应用系,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2014年第2期48-54,共7页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(61203109)

摘　　要：本文研究了基于G-O软件可靠性模型的最优软件发布时间问题,提出了结合风险价值VaR约束的软件测试费用优化模型,给出了在一定置信水平下VaR计算的解析式,通过MonteCarlo仿真实验,计算出软件最优发布时间,分析了仿真结果和参系数的灵敏度,并与经典G-O模型进行比较,结果显示VaR约束模型更加有效地估计了软件发布后多次软件失效的极端风险。The paper studies optimal software release time problem based on G-O software reliabilitymodel, and proposes a new minimum software test cost model with VaR constraint. The analytic formu-la of VaR based on non-homogeneous Poisson process is obtained, and the optimal release time of soft-ware is calculated by numeric experiments based oncoefficients are analyzed, which shows that decisionMonte Carlo simulation. The results and sensitivityvariables of the model well presents the risk prefer-ence of software project manager. The comparison of classic G-O model and VaR constrain G-O model isconducted, and the resuls show the G-O model underestimats the extreme risk of multi-faults of soft-ware after release comparing with VaR constrain G-O model.

关 键 词：G-O软件可靠性模型 软件最优发布 VaR风险 最小期望费用 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]