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Workflow authorization model based on RBAC for CSCD system
基于RBAC的CSCD系统工作流授权模型

Keywords: CSCD(Computer-Supported Collaborative Design),RBAC(Role-Based Access Control),authorization model,temporal-spatial permission
计算机支持合作设计
,基于角色的访问控制,授权模型,时空权限

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Abstract:

This paper proposed a workflow authorization model based on RBAC(Role-Based Access Control) for collaborative design system.Different from traditional access control authorization models,this model provided the notion of temporal-spatial permission which represents the fact that can only perform certain operation on a task for a certain time interval and a certain spatial range of Internet/Intranet,namely the workflow authorization based on RBAC for collaborative design system not only relates with time,but also relates with Internet/Intranet address.It can not only ensure that only authorized users could execute a task,but also ensure that the authorization flow is synchronized with workflow and the dynamic change of spatial range of Internet/Intranet address.

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