因此，本文主要分为两个重要的组成部分：信息系统的风险分析和管理过程及基于RBAC的安全模型设计。
So the article mainly consists of two parts: the Information System Risk Analysis and security Management and the design of the security model based on the RBAC.
而风险评估作为信息安全管理的一个重要环节，对保障企事业的基础信息系统安全有着非常重要的作用。
As an essential part of information security Management, information Risk Assessment takes a very important role in securing the safety and security of fundamental information systems.
安全评估是对信息系统进行风险管理的一个重要步骤。
Security assessment is an important process to carry out information system risk management.
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