A design architecture of the defined access control policy is presented detailing the components and their interactions . authentication , one of the fundamental concerns required for application of the design to distributed computer environments , is discussed deeply 根据广泛角色和任务结合的访问控制策略,设计了一个访问控制体系结构方案,详细介绍了其中的组件以及组件之间的交互,并对这个方案在分布式环境中实现时的认证问题进行了深入的讨论。