基于路径故障概率分析的软件可靠性评估仿真  

Software Reliability Evaluation Simulation Based onPath Failure Probability Analysis

作　　者：范金良[1] 田强 FAN Jin-liang;TIAN Qiang(Tianjin Normal University,Tianjin 300387,China;School of Computer and Information Engineering,Tianjin Normal University,Tianjin 300387,China)

机构地区：[1]天津师范大学,天津300387 [2]天津师范大学计算机与信息工程学院,300387

出　　处：《计算机仿真》2024年第4期341-344,455,共5页Computer Simulation

基　　金：教育部产学合作协同育人项目(220504647084939)。

摘　　要：为了保证软件运行安全,减少故障发生概率,提出了一种持续集成环境中软件可靠性评估方法。计算软件故障率,根据计算结果划分故障等级,充分考虑组件的重要程度,量化可靠性指标,选用偏导数描述软件组件的重要程度。引入路径概念,根据软件可靠性特征,建立路径原则,对持续集成环境软件可靠性进行分析,明确路径故障概率后,当路径上的某一项运算发生错误时,整个路径即为故障路径,由此得到路径故障率,实现整体软件可靠性评估。由实验结果可知,所提方法能够得到更为精准的软件可靠性评估结果,有利于保证网络运行稳定安全。To ensure the safety of software and reduce the failure probability,this paper proposed an assessment method of software reliability in continuous integration environments.Firstly,the software failure rate was calculated.Based on the results,fault levels were classified.After the importance of components was fully considered,reliability indicators were quantified.Then,partial derivatives were used to describe the importance of software components.Next,the concept of path was introduced.According to the characteristics of software reliability,we established path principles and analyzed the reliability of software in a continuous integration environment to clarify the probability of path failures.When an error occurs in one of the operations on the path,the entire path becomes a fault path.Thus,the path failure rate was obtained.Finally,the overall software reliability assessment was achieved.Experimental results prove that the proposed method can obtain more accurate results of software reliability assessment,which is conducive to ensuring the stability and security of the network.

关 键 词：持续集成环境 软件可靠性 可靠性评估 软件故障率 偏导数 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]