摘要
应用马尔可夫链描述构件化软件系统状态转移的动态特性,研究了基于马尔可夫分析方法的软件可靠性建模问题。针对构件化的软件系统,综合考虑构件的失效率、复杂度、重要度和占用率等多个因素,分别定义了构件的可靠性函数和软件系统的可靠性函数,建立了软件系统的可靠性模型。最后,通过对一个实际软件系统的可靠性建模分析,验证了该模型的有效性。
In this paper,the Markov chain is used to describe the dynamic characteristics of state transition in compo-nent-based software system.The problem of software reliability modeling based on Markov analysis is studied.For compo-nent-based software system,considering the multiple factors of component failure rate,complexity,importance and occupancy rate,the reliability functions of component and software system are both defined,and a reliability model of software system is estab-lished.Finally,the validity of the model is verified by the analysis of a real software system.
作者
李程
LI Cheng(No.715 Research Institute of CSIC,Hangzhou 310023)
出处
《舰船电子工程》
2018年第9期122-125,共4页
Ship Electronic Engineering
关键词
马尔可夫链
构件
软件可靠性
可靠性模型
Markov chain
component
software reliability
reliability model
