基于使用模型的软件可靠性加速测试  

SOFTWARE RELIABILITY ACCELERATED TESTING BASED ON USAGE MODEL

作　　者：徐云青[1] 徐义峰[1] 李舟军[2] 

机构地区：[1]衢州学院信息与电子工程系,浙江衙州324000 [2]北京航空航天大学计算机科学与工程学院,北京100083

出　　处：《计算机应用与软件》2009年第3期147-148,178,共3页Computer Applications and Software

摘　　要：给出了一种使用分层抽样和重要抽样方法并基于Markov链使用模型的软件可靠性加速测试的方法,在根据统计测试结果得到软件可靠性无偏估计的前提下,可以有效提高安全攸关软件的测试效率,部分解决了安全攸关软件统计测试时间和费用开销过大的问题。实例仿真结果表明,该方法可以有效地提高软件可靠性关键操作的测试效率。In safety-critical system,not only the software reliability often needs too much time in statistical test,but also critical operations often test not enough and cost very high. This paper describes the method of software reliability accelerated test based on Markov link usage model, which uses the method of stratified sampling and importance sampling. It partially resolves the above problems provided that the unbiased estimation of software reliability is derived from the statistical test results which ameliorate the efficiency of the safety-critical software testing effectively. A case study of simulation shows that this method can effectively improve the test efficiency of the software reliability in key operations.

关 键 词：使用模型 软件可靠性 加速测试 分层抽样 重要抽样 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论] TM346[自动化与计算机技术—计算机科学与技术]