Likelihood Function of a Debugging Model for Computer Software Reliability
Likelihood Function of a Debugging Model for Computer Software Reliability
复制标题
DOI：
10.1109/tr.1981.5221009
复制
发表时间：
1981-06
影响因子：
5.9
通讯作者：
B. Littlewood;J. L. Verrall
中科院分区：
文献类型：
--
作者：
B. Littlewood;J. L. Verrall
Jelinski和Moranda提出的软件可靠性增长的简单模型已被广泛应用，但存在参数估计困难。我们发现，从模型中获得无意义的结果的一个主要原因是它的应用程序的数据集表现出下降的可靠性。我们提出了一个简单的，必要的和充分的条件，最大似然估计是有限的，并建议这个条件进行测试之前使用的模型。
A simple model for software reliability growth, originally suggested by Jelinski & Moranda, has been widely used but suffers from difficulties associated with parameter estimation. We show that a major reason for obtaining nonsensical results from the model is its application to data sets which exhibit decreasing reliability. We present a simple, necessary and sufficient condition for the maximum likelihood estimates to be finite and suggest that this condition be tested prior to using the model.