含空间特性的工作流访问控制模型

Spatial Data Workflow Authorization Model

对现有的工作流系统进行分析,结合传统的RBAC模型,提出了一个含空间数据特性的工作流访问控制模型。该模型将空间位置特性引入到授权决策过程中,给传统的工作流访问控制模型增加了安全空间描述能力,并定义了相应的授权约束,实现了在空间环境下安全、灵活的用户授权管理与访问控制。

Based on the analysis of the present workflow system and combined with the traditional RBAC model, a new model called Spatial Data Workflow Authorization Model （SPWAM） has been put forward. After using the spatial characteristics into the process of authorization, this new model enhances safer spatial description and defines the corresponding authorization control, which provides safer and more flexible user authorization management and access control.