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在网络系统可生存性的四个关键属性基础上,采用层次化分析方法,将网络系统自上而下分成软件、硬件及运行环境三个影响因素层,提出了一套可提取、可观测、可操作的指标体系,并通过适当的算法进行量化计算,对结果进行分级评估分析,能在量化评估结果中反映网络可生存属性。通过实验验证,该指标体系使网络系统可生存能力量化评估更可行,使评估结果更有工程指导意义。
Based on the four key attributes of survivability of network system, this paper divides the network system from top to bottom into three layers of influencing factors of software, hardware and operating environment by using the method of hierarchical analysis, and proposes a set of layers that can be extracted, observable, Operable index system, and through the appropriate algorithm for quantitative calculation, the results of the hierarchical assessment analysis, the results can be quantified in the network reflect the existence of survivable attributes. Through experimental verification, this index system makes the network system survivability quantitative assessment more feasible, making the evaluation result more project-oriented.