【摘要】 针对监控系统软件可靠性分析的实时性和求解高效性 ,通过对各类软件可靠性模型的比较 ,采用J -M模型并对其进行了理论推导和有解无解分析。根据模型参数方程的非严格单调的特点 ,对其采用了步长为 0 .1的试探性数值求解 ,保证了在较短时间内求得满意解。通过对监控系统的数据处理 ,可得到包括故障发生次数、下一故障发生时间、当前错误查出率、当前失效率等评估参数值 ,所有评估结果可视化显示更多还原

【Abstract】 In accordance with the real time ability and problem solving efficiency, the J M model is adopted in reliability measurement of supervisory systems after having compared different software reliability models. And then the theoretical deduction and solution analysis of J M model are given. Considering that the model′s parameter equation is not strictly monotonous, the trial numerical evaluation with step 0.1 is used to get a satisfactory solution in a shorter time. After disposing supervising data, the evaluation targets, such as currently accumulated failures, ratio of current invalidation, etc. can be got and shown visually.更多还原