方案中还提出了以SIP地址域的分级方式进行组织管理的用户数据库系统，定义了为子网中移动终端服务的区域代理。
The scheme also defines a user database system organized by hierarchical domains of SIP address, and a domain agent managing mobile nodes in subnetwork.
另外，分级用户权限管理控制机制和一致性保持问题，也是协同工作软件系统必须考虑的。
Furthermore, classification user purview control mechanism and consistency preserve are also the most common issue in collaboration systems.
在网络安全方面，运用数字签名、CA认证和用户分级管理体系确保系统在网络运行中的安全性和网络传输的有效性。
As to network safety, digital signature, ca authentication and graded custom management have been applied to insure the safety and efficiency in the network running and transferring.
网格系统采用分级调度模式，用户作业通过资源代理进行全局调度，在局部资源管理器上实现局部调度并真正完成作业的处理。
In the grid system hierarchical structure was adopted in the resource management and in order to utilize grid resources effectively, grid job submission is completed by the resource brokers.
网格系统采用分级调度模式，用户作业通过资源代理进行全局调度，在局部资源管理器上实现局部调度并真正完成作业的处理。
In the grid system hierarchical structure was adopted in the resource management and in order to utilize grid resources effectively, grid job submission is completed by the resource brokers.
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