摘要
考虑及时纠正和延缓纠正相结合的可靠性增长规划方式,采用纠正有效性系数的加权平均,并引入排错效率函数,提出一种软件阶段可靠性增长的模型.给出软件在试验阶段内各个时刻的瞬时失效率估计值的表达式和下一个试验阶段初期可靠性水平的预测值,并用一组数据作为示例,验证模型的有效性和实用性.
A staged software reliability growth model was presented,where the reliability growth planning methods with immediate correction and delayed correction combined was considered,weighted average of effectiveness factors was employed,and the fault removal efficiency function was introduced.Both the estimated value of the instantaneous failure rate in current test stage and the projection value of the initial reliability level of the next test stage were given.The model was tested for real software error data to show its validity and applicability.
出处
《兰州理工大学学报》
CAS
北大核心
2009年第4期137-140,共4页
Journal of Lanzhou University of Technology
基金
甘肃省自然科学基金(3ZS042-B25-016)
关键词
可靠性增长模型
即时改进
延缓改进
纠正有效性系数
排错效率函数
reliability growth model
immediate correction
delayed correction
effectiveness factor
fault removal efficiency function
