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。
This paper introduces the theory of access control model based on role and task, and analyzes task and the shortage of above models.
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.
提出了一个数字证书营运中的基于任务的访问控制模型，解决了数字证书营运中的安全问题。
In this paper, we develop a task-based access control model for the service of certificate to solve those secure-problems.
访问控制技术是网络安全的一项基本技术，主要包括基于角色的访问控制和基于任务的访问控制等技术。
Access control is a basic technology in network security. It includes the role based access control and the task based access control, etc.
在组织机构模型设计中，采用角色和任务的访问控制，达到了对表单中数据的访问控制粒度，满足了工作流管理系统中的访问控制目标。
In the design of organization, the paper gives the access control based on roles and tasks to meet the objective of the workflow management, implementing the access control to the data in the form.
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.
管理用户和组并控制它们的访问一直都是操作系统中一项关键任务。
Managing users and groups and controlling their access is always a critical task in operating systems.
一个操作系统负责决定哪一个任务在给定的时间将使用处理器，并且控制对共享资源的访问。
The operating system is responsible for deciding which task should be using the processor at a given time and for controlling access to Shared resources.
在当前环境内管理用户和控制用户的访问是一项极具挑战性的任务。
Managing users and controlling their access is a challenging task in the current environment.
标准部署流程也会让自动化变得更简单，让运维人员从重复任务中解脱出来，同合适的访问控制相结合，可以让开发人员自己执行部署。
It is also simpler to automate, freeing up Operations for less repetitive tasks and, in combination with suitably access controls, enabling developers to carry out their own deployments.
它负责处理操作系统任务、管理对内存的访问并控制SPE的工作。
It handles operating system tasks, regulates access to memory, and controls the SPEs.
上一小节建议控制对公共任务列表拥有访问权的用户数量。
The previous section suggests keeping the number of users who have access to a common task list small.
完成并检验最初的交换配置任务包括远程访问控制
Perform and verify initial switch configuration tasks including remote access management
因为开发人员完全控制在会话bean中使用的数据访问机制，所以可以针对某些任务优化数据访问和持久性逻辑。
Because developers have complete control over the data access mechanism used within a session bean, data access and persistence logic can be optimized for certain tasks.
Solaris10 中的RBAC的优点在于，它通过提供对管理任务（可在以后进行分配）的细粒度控制最小化了对根访问的需求。
The advantage of RBAC in Solaris 10 minimizes the need for root access by providing fine-grained control over administrative tasks that can then be assigned.
这些任务包括：指定底层的后端存储、访问控制机制、可用的工作区、版本管理系统和搜索子系统。
Among other things, it specifies the underlying backing store, the access control mechanism, the available workspaces, the versioning system, and the search subsystem. Listing 1 gives an example.
通过引入访问控制矩阵，实现了对任务的实时、动态的控制，从而确保了系统的安全。
By using access control matrix, we can achieve the real time and dynamic control of task, which ensures the system security.
有一个非常简单的快速访问控制界面的基本任务和标准的图形用户界面更高级的任务。
There is a very simple Quick Access Control GUI for basic tasks and the standard GUI for more advanced task.
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；
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.
之后在CADAL主要任务的指导下，详细的阐述了CADAL硬件架构的设计原则和资源访问控制的需求。
Then according to the primary target of CADAL, we consider the design principal of hardware architecture and the requirement of access control particularly.
为此，提出了一种基于任务的计算网格访问控制模型。
Traditional model of access control can not satify security requerments of grid either.
针对网络化制造中协同环境的安全问题，分析了现有访问控制模型以及网络化制造协同任务的应用特点。
Current access control models applied in the network-based manufacturing system and application characteristics of collaborative project were analyzed.
访问控制作为网络安全防范和保护的主要技术，主要任务是保证网络资源不被非法访问和使用。
The main purpose of Access Control, a major technique of network security prevention and protection, is to safeguard network resources from being illegally visited and used.
访问控制作为网络安全防范和保护的主要技术，主要任务是保证网络资源不被非法访问和使用。
The main purpose of Access Control, a major technique of network security prevention and protection, is to safeguard network resources from being illegally visited and used.
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