To truly empower the Web community, which is an underlying tenet of this new phase of Web usage and application development, the community first has to be able to share a common access method to a given application. 要想真正地为Web社区(这也是Web使用和应用程序开发的新阶段的基础承租者)授权,社区首先必须能够共享对给定应用程序的公共访问方法。
This paper analyses the shortcomings of common access control method and designs a new one based on role. The new method gives out the way for managing users and roles, and enables small-granularity access control to specific object and operation. 分析常用的访问控制方法的不足,利用基于角色的访问控制技术,提供对特定被管理资源、特定操作的细粒度访问控制方案,并提出了针对用户和角色的管理方法。
From this point of view, some common access control methods have been contrasted and a more reasonable point-TOKeN method is proposed. 同时对常用的局部网存取控制方式进行了对比,提出了采用TOKEN方式较为合理的观点。
The new RBAC policy has the ability to describe various temporal constraints, and can appropriately describe the behavior of the common access control with temporal constraints. Secondly, this paper presents a security analysis method on RBAC policy with temporal constraints. 新的RBAC策略具备描述各种各样的时间约束的能力,并且能够贴切地描述常见的时间访问控制行为。其次,本文提出了一种分析具有时间约束的RBAC策略的方法。
Through analyzing several common format of graphics files, This paper systematically discusses a varieties of access graphics technology of Database on ADO mode of VB and Delphi environment, and presents an effective method of Database access graphics. 经过对几种常见图形文件格式的分析,在VB和Delphi环境下,比较系统地讨论了ADO方式中数据库存取多种图形格式技术,并给出了数据库存取图形的有效方法和算法。