一种基于云模型的信息系统威胁因素分析方法

信息系统所面临的威胁复杂多变，具有很多不确定性因素。人们多用定性的自然语言对威胁因素进行评价，传统的分析方法存在着一定的局限性。提出了一种基于云模型信息系统威胁因素分析方法，应用云模型及不确定性推理，将威胁评价因子指标量化为可细微变化的不同分值，实现语言的定性概念与其定量之问的转换。在此基础上，结合关联分析法对威胁影响因素的权重进行挖掘，客观反映出其影响程度。最后通过实例分析，验证了该方法的有效性。

A Threat Factors Analysis Method of Information System Based on Cloud Model

The threat of information system is complex and variable, and with many uncertain factors. There are some limits in the traditional estimate methods, for people usually describe the threat with qualitative linguistic words. A threat analysis method of information system based on cloud model is proposed in this paper. Mapping qualitative linguistic words of the threat estimate factors into a fine-changeable cloud drops and translating the uncertain factor conditions into quantitative values with the uncertai...