摘要
针对信息系统业务波及影响分析缺乏量级标定以及分析结果受专家评价偏好影响的不足,提出一种基于交叉概率理论的系统业务波及影响分析方法 .首先由专家评估信息系统业务功能间的关联性和影响程度,通过交叉影响矩阵表示业务功能间的关联性;然后用主客观权重结合法为矩阵赋权,减小专家打分对交叉影响矩阵的主观影响,将系统业务功能间的关联性进行量化,生成综合交叉影响矩阵;最后使用偏好链生成算法生成信息系统的业务功能偏好链,将系统各业务功能的相互影响关系进行关联,在此基础上通过业务功能在偏好链的位置分析得到业务功能中断后对其他业务功能的波及影响趋势.实验结果表明本文方法能准确度量业务功能中断对信息系统其他业务功能的波及影响程度和趋势.
Because of the lack of scale calibration on the analysis results of information system business impact analysis as well as the influence of expert evaluation preference on it, an analysis method of system business affecting impact based on crossover probability theory is proposed. First, the experts evaluate the relevance and influence of the business functions of the information system, and the correlation between business functions is represented by a cross-impact matrix. Then, the subjective and objective weight combination method is used to weight the matrix to reduce the subjective impact of experts scoring on the cross-impact matrix, quantify the correlation between system business functions, and generate a comprehensive cross-impact matrix. Finally, the preference chain generation algorithm is used to generate the business preference chain of the information system, and the interaction relationship of each business of the system is associated. On this basis, the influence trend of other businesses after the business interruption is obtained by analyzing the position of the interrupted business in the preference chain. Experimental results show that the proposed method can accurately measure the impact and trend of business function interruption on other business functions of information system.
作者
谢丽霞
张益嘉
杨宏宇
张良
XIE Lixia;ZHANG Yijia;YANG Hongyu;ZHANG Liang(College of Computer Science and Technology,Civil Aviation University of China,Tianjin 300300,China;College of Safety Science and Engineering,Civil Aviation University of China,Tianjin 300300,China;College of Information,University of Arizona,Tucson AZ85721,USA)
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第6期80-89,共10页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金民航联合研究基金项目(U1833107)。
关键词
信息安全
信息系统
业务波及影响
交叉概率理论
偏好链
information security
information system
business affecting impact
crossover probability theory
preference chain
