一种提高软件可靠性预计质量的方法

A Method to Improve the Software Reliability Prediction Quality

利用软件可靠性模型可以预计软件能够达到的可靠性水平,但预计质量有时会很差,即预计结果和实际情况之间存在较大偏离。将几组在软件测试过程中收集到的失效数据运用于两种软件可靠性预计模型,利用U图分析偏离情况,在此基础上提出一种减少偏离的方法,经过对比发现该方法能明显降低偏离。

Using software reliability modal can predict the level of reliability of a software. Sometimes the prediction quality is poor, because there is great bias between the prediction result and the truth. Based on applying several failure data collected in the test to two software prediction modals and analyzing the bias of the prediction by U plot, this paper offers a method to reduce the bias. Comparing the results, the method reduces bias dramaticly