基于角色的跨组织工作流存取控制机制

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。

Inter-organization Workflow Access Control Mechanism Based on Role

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 intra-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.