面向服务的网格模型及其访问权限分配策略

面向服务的网格体系结构是新一代网络的重要特征，而访问权限控制机制是面向服务网格模型中必须解决的问题。文章重点研究了服务网格的模型及对应的权限管理机制，提出一个提供服务质量保障的网格模型，支持QoS协商和资源虚拟化，在各层次间方便地提供QoS映射和监控。同时提出了一种访问权限的分配策略，基于角色模型在各实体间进行权限映射，简化了权限管理的过程。通过实际的过程模型分析，验证了服务网格模型及其权限分配策略的有效性和适应性。

A service-oriented grid model with strategy of access control

Service-oriented grid architecture is an important feature of next-generation networks, and access control mechanisms must be addressed in service-oriented grid model. The paper focused on the services of the model grid and corresponding rights management mechanisms. A QoS assurance grid model with supports for QoS negotiation and resource virtualization was proposed, which facilitates the delivery, mapping and monitor of QoS between different levels. A distribution strategy of access right was put forward, which could map permissions between entities based on role model and simplify the process of rights management. The analysis of actual process model verified the effectiveness and adaptability of the grid model and the distribution strategy of access right.