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一个改进的NHPP类软件可靠性增长模型框架 被引量:1
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作者 张民悦 李琦 《兰州理工大学学报》 CAS 北大核心 2012年第4期89-92,共4页
针对现有的NHPP类软件可靠性增长模型,提出一个既考虑关联故障和构件结构,又考虑软件的不完美测试、故障检测率和故障改正效率随时间变化的NHPP类软件可靠性增长模型框架.许多经典的软件可靠性增长模型以及基于软件故障类型和构件结构的... 针对现有的NHPP类软件可靠性增长模型,提出一个既考虑关联故障和构件结构,又考虑软件的不完美测试、故障检测率和故障改正效率随时间变化的NHPP类软件可靠性增长模型框架.许多经典的软件可靠性增长模型以及基于软件故障类型和构件结构的NHPP类模型都可以从这个框架中推导出来. 展开更多
关键词 软件可靠性增长模型 非齐次泊松过程 关联故障 软件构件结构
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Design and Study of a High Security ATM System
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作者 范瑞霞 赵则祥 张俊 《Journal of Beijing Institute of Technology》 EI CAS 2002年第1期41-44,共4页
Based on the characteristics of ATM system and the special requirement of financial transaction, an overall design of hardware and software structure of ATM was made. For software structure, the pattern of modules and... Based on the characteristics of ATM system and the special requirement of financial transaction, an overall design of hardware and software structure of ATM was made. For software structure, the pattern of modules and table? drive is adopted to realize the security of financial transaction and the diagnosis of communication fault. A new method, which is based on the application layer, transport layer and network layer, is used for diagnosing communication fault. Supporting both magnetic card and IC card, the system has been put into use in real financial systems, and has brought about both economic and social effects. 展开更多
关键词 ATM IC card SECURITY fault diagnosis
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