基于角色的跨组织工作流存取控制机制

摘要

针对基于角色的存取控制模型不适合跨组织环境的问题,扩展组织内部以角色为基础的存取控制,采用一种角色分数机制,并在水平式跨组织工作流程环境中的使用者、角色及工作之间加上更严谨的限制条件,让使用者在虚拟角色集合中,选择一个适当的角色进入跨组织工作流程内执行工作.实验结果证明,该扩展简单有效,企业在进行跨组织工作流程时更具公平性及安全性.%The Role-based Access Control(RBAC) is widely applied because of its advantages. For the unsuitability of RBAC in inter-organization environment, the main propose of this research is to extend the characteristics of RBAC on ultra-organization workflow. The research puts forward a role score mechanism, and appends more strict constraint to users, roles and activities of horizontal inter-organization workflow. Besides, this research makes sure that a user chooses an appropriate role from virtual role set to execute activity in inter-organization workflow. Proved by the experiment, the extension is simple and effective, and it makes the enterprises more equitable and securable in inter-organization workflow.