包含错误恢复的软件可靠性仿真研究  

Software Reliability Simulation Research Containing Fault Recovery

作　　者：王强[1] 陆阳[1,2] 吴雷[1] 魏臻[1,2] 

机构地区：[1]合肥工业大学计算机与信息学院,合肥230009 [2]安全关键工业测控技术教育部工程研究中心,合肥230009

出　　处：《系统仿真学报》2013年第5期887-893,共7页Journal of System Simulation

基　　金：国家自然科学基金(60873195;61070220);教育部博士点基金(20090111110002;20120111110001)

摘　　要：基于结构的软件可靠性分析模型虽然能够在构件可靠性、系统结构、系统可靠性三者之间建立联系并分析,但由于其模型中大多使用可靠性常量来刻画构件可靠性,忽略了实际软件开发过程中错误恢复对系统可靠性的影响。为此,利用离散事件仿真手段对构件失效行为、系统失效行为和错误恢复进行仿真,给出一种包含错误恢复的软件可靠性仿真分析方法,该方法在软件测试阶段能够反映构件可靠性增长对于系统可靠性的影响,同时具有软件可靠性增长模型和基于结构的软件可靠性分析模型的优点。通过对两个软件系统的可靠性仿真分析验证了该方法的有效性。The component reliabilities, the system architecture and the system reliability could be associated and analyzed together with the architecture based software reliability models. Since the reliabilities of components were depicted as constants in most cases, the evaluation of the system reliability was impacted without considering the fault recovery process in the software testing phase. To this end, a simulation method of the software reliability analysis was proposed based on discrete event. Through simulating the component failure process, the system failure process and the fault recovery process, the method is able to reflect the influence of the reliability growth of component, and has both the advantages of SRGM and ABSRM. Finally, the effectiveness of the method was illustrated with two software reliabilities analysis.

关 键 词：构件可靠性 错误恢复策略 系统结构 系统可靠性 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]