摘要
针对安全关键软件随机测试过程中可能出现的无失效情况,在对失效分布函数进行分析的基础上,确定了可靠度的多层先验分布,并给出了其Bayes估计。最后结合实际问题进行了计算,证明了该文中方法的可行性。
In the progress of random testing for safety-critical software,the situation of zero-failure data may happen.For zero-failure data,the hierarchical prior distributions and Bayesian reliability estimation were presented based on the analysis of failure distribution function.Finally calculation was performed regarding to practical problem,and the results showed the method given in the paper was feasible.
出处
《电子质量》
2011年第1期21-22,25,共3页
Electronics Quality
关键词
安全关键软件
无失效数据
多层BAYES估计
可靠性
Safety-critical Software
Zero-failure data
Hierarchical Bayesian estimation
Reliability
