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计算机工程 ›› 2010, Vol. 36 ›› Issue (2): 73-74. doi: 10.3969/j.issn.1000-3428.2010.02.026

• 软件技术与数据库 • 上一篇    下一篇

基于贝叶斯的软件可靠性评估研究

柴哲丽,林佳齐,朱金平,唐 平   

  1. (广东工业大学自动化学院,广州 510006)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-01-20 发布日期:2010-01-20

Research on Software Reliability Evaluation Based on Bayes

CHAI Zhe-li, LIN Jia-qi, ZHU Jin-ping, TANG Ping,   

  1. (Faculty of Automation, Guangdong University of Technology, Guangzhou 510006)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-01-20 Published:2010-01-20

摘要: 以贝叶斯公式为基础,根据软件正确性的先验概率密度函数以及正确通过软件测试案例的数量分布服从二项分布的数学特征,求得软件正确性概率的后验分布,并提出一种改进的软件可靠性评估方法,从而解决了软件测试可靠性评估过程复杂且计算量较大的问题。在Matlab平台上对软件系统(中文学习平台)的测试可靠性进行评估,实验结果表明,该方法具有较高的实用性。

关键词: 软件测试, 贝叶斯公式, 软件可靠性, 二项分布

Abstract: On basis of Bayes formula, a modified method about evaluation of software reliability is presented according to the probability-density function of the correctness of the software and mathematical characteristics of the number of test cases passing software obeying binomial distribution. The probability distribution function of the correctness of the software is deduced. Compared with the process evaluating software reliability by defining parameter, the modified method is more simply and has less calculated amount. The reliability of the platform of learning for Chinese study is evaluated with Matlab platform. Experimental results show this method is more practical.

Key words: software test, Bayes formula, software reliability, binomial distribution

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