粗粒度的授权控制：云服务的管理界面特别倾向于提供过粗粒度的授权控制模型。
Coarse authorization control. Cloud services' manage-ment interfaces are particularly prone to offering authorization control models that are too coarse.
本文描述HumanTaskManager人员解析的编程模型，前者为基于实例的授权提供访问控制列表。
This article describes the programming model for Human Task Manager staff resolution, which provides access control lists for instance-based authorization.
门户域中的访问控制没有基于J2EE授权模型，因为它不够强大，不足以成为可行的门户授权域解决方案。
Access control within the portal domain is not based on the J2EE authorization model, because it is not powerful enough to be a viable solution for the portal authorization domain.
基于任务的授权控制（TBAC）则是以任务为中心，并采用动态授权的主动安全模型。
Task based access control (TBAC) is an initiative security model, where task is focus of work and dynamic authorization is used.
最后使用此策略构造了一个基于属性证书的授权和访问控制模型，能够灵活方便地实现电子政务中的安全访问控制。
At last, based on attribute certificate, a model is constructed to solve the authorization and access-control problem, to realize secure access-control in the electronic government.
在此临时授权模型基础之上，我们详细讨论了XML访问控制的若干技术问题。
Based on this provisional authorization model, several problems of XML access control technology are discussed in detail.
授权约束是基于角色的访问控制模型中一个非常重要的部分。
Authorization constraint is an important part in role-based access control models.
PMI体系和模型的核心内容是实现授权与访问控制的有效管理。
The important content of PMI(Privilege Management Infrastructure) and model is to realize the efficient management of authorization and access control.
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。
This paper discusses the authorization problem and defines the conception of covered role, presents a proxy mechanism oriented role-based access control (PRBAC) model.
从身份认证和访问控制入手，结合PKI和RBAC技术，提出了一种针对电子病历的基于身份的授权模型。
An identity-based authorization model is presented in this paper. It combined the identity authentication technique of PKI and the access control technique of RBAC.
基于任务的访问控制模型是一种以任务为中心，并采用动态授权的主动安全模型。
Task based Access Control Model is task centered and offers dynamic authorization , so it belongs to the active security model.
讨论了模型体系结构，承诺担保机制，授权职责分离以及访问控制。
Its architecture, promise & assurance mechanism, separation of duties of authorization and access control are discussed.
分析ISO10181访问控制框架与权限管理基础设施PMI，提出了跨信任域的授权模型CTRA。
The ISO10181 access control framework and the Privilege Management Infrastructure PMI are analyzed, and a Cross Trust Regions Authorization Framework(CTRA) is designed.
提出了一个安全数据库访问控制模型，包括一个多层关系模型和一个用以增强自主访问控制能力的元素级粒度的授权。
In this paper, we proposed a formal security database system access model including a multilevel relation model and a element-level authorization.
通过引入授权和可变属性，使用控制授权模型具有了新的特性。
After importing authorization and mutable attribute, the usage control authorization model is characterized with a new feature.
该模型主要包括以下几个部分：中央控制模块，信任管理模块，授权管理模块，错误控制模块等。
This model is composed of error control unit, authorization unit, trust management and central control unit, and so on.
基于规则和角色的访问控制模型RB-RBAC在RBAC模型的基础上引入了用户属性和授权规则，使得用户-角色分配能够自动完成。
Rule-based RBAC (RB-RBAC) modifies RBAC and introduces user attributes and rules to automatically assign users to roles. But there are still shortcomings in RB-RBAC.
分析了以上两种模型存在的问题，为了使访问控制更灵活，提出了一种基于角色和任务的访问控制模型，并给出了模型的形式化定义、授权约束和在校园网格中的应用。
It puts forwards a new access control mode based on role and task to make access control more flexible. The formalized meaning, restriction and application in school grid are also presented.
分析了以上两种模型存在的问题，为了使访问控制更灵活，提出了一种基于角色和任务的访问控制模型，并给出了模型的形式化定义、授权约束和在校园网格中的应用。
It puts forwards a new access control mode based on role and task to make access control more flexible. The formalized meaning, restriction and application in school grid are also presented.
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