Perfect security system, Using flexible Role-Based Access Control model to build flexible Role-Based Access Control system.
完善的安全体系，采用灵活的基于角色的访问控制模型，实现灵活的访问控制体系。
This paper analyzes the characteristics of Spacecraft Fault Diagnosis System and the basic idea and principle of Role-Based Access Control model.
文章介绍了基于角色的权限管理模型的基本思想及工作原理，并分析了航天器故障诊断系统中权限管理的特征。
Role is introduced to separate user and privilege in role-based access control model, but RBAC can't directly control the permission for a sequence of events.
而基于角色的访问控制模型以角色为中介，将用户与权限逻辑隔离，但该模型不能处理有执行顺序的任务；
In this system, many new techniques are adopted, for example, mechanism of the chain of trust, role-based access control model, two-level of logs, trusted authorization and so on.
系统中采用了信任链机制、基于角色的访问控制模型、两级日志、可信认证等技术，同时给出了可信在分布式计算机系统中的实现技术和途径。
In the application of secure information systems, the traditional role-based access control model can not filter business data for users, which easily results in secret data leakage.
在安全信息系统应用中，传统的基于角色的访问控制模型不能为用户过滤业务数据，容易导致数据失密。
In this paper, we introduce the role-based access control model, analyse the role hierarchy model and the problem of private permissions in RBAC96, and point out the disadvantage of Sandhu s solution.
针对著名的 RBAC96模型的不足之处 ，结合私有权限、部门权限和权限属性变化等问题 ，对角色权限及角色层次关系进行了分析 ，提出了一个改进的角色层次化关系模型 。
This paper analyzes the security mechanism of SYBASE database management system and the model of Role-based Access Control.
文章分析了SYBASE数据库管理系统的安全控制机制和基于角色的数据访问控制模型。
A new model, role access control model based on resource abstract (RD_RBAC), is proposed in the paper.
论文提出一种新的访问控制模型—基于资源抽象的角色访问控制模型(RD_RBAC)。
The normal Role-Based Access Control(RBAC) model configures the model resources through roles, and this model is one-dimensional according to the manipulated resources.
标准的基于角色访问控制（RBAC）通过角色对用户和权限进行解耦，从受控资源角度来讲是一维的。
This paper discusses the authorization problem and defines the conception of covered role, presents a proxy mechanism oriented role-based access control (PRBAC) model.
该文介绍了RBAC与代理机制相结合所带来的授权问题，在定义了角色屏蔽概念的基础上，提出了面向代理机制的角色访问控制模型。
A new model, role access control model based on authentication trustworthiness (AT-RBAC) is proposed in the paper.
提出一种基于认证可信度的角色访问控制模型(AT - RBAC)。
A problem that child role cannot obtain private permissions because of inherited relation in the Role-Based Access Control (RBAC) model is researched.
针对基于角色的访问控制(RBAC)模型中由于继承关系产生的子角色不能拥有私有权限问题进行了研究。
The role could span all web systems in portal. It was a token-based and dynamic-activated access control model, which could dynamically adjust the access rights according to user access requirement.
该模型是一个动态激活的模型，根据用户实际的访问需求动态激活相应角色，为用户管理和访问控制管理提供了一个新的解决方案。
This paper proposes the role concept, discusses the dynamic access control of role-based workflow status, and describes and analyses the formal model.
本文将角色的概念加入进来，讨论了基于角色的工作流状态的动态访问控制，并对其模型进行了形式化描述和分析。
Synthesizes main models of role - based aceros control and designs a time role - based access control model which is called TRBAC model.
在基于角色访问控制的几种主要模型的基础上，提出了一种基于时间的角色访问控制模型。
This paper introduces the theory of access control model based on role and task, and analyzes task and the shortage of above models.
介绍了基于角色的访问控制模型和基于任务的访问控制模型的原理。
The main contributions of the thesis are as follows:1. A domain administration of task-role based access control model (DATRBAC) is proposed.
论文的主要工作如下：1。提出了一种基于域管理的访问控制模型DATRBAC。
The main contributions of the thesis are as follows:1. A domain administration of task-role based access control model (DATRBAC) is proposed.
论文的主要工作如下：1。提出了一种基于域管理的访问控制模型DATRBAC。
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