在角色的安全访问控制模型的基础上，提出了基于角色控制的安全工作流模型，使文档在工作流引擎的驱动下，在网络环境中流向正确用户。
And it presents a secure office workflow based on our designed secure access control model to make the document flow to the right figure user in network by workflow engine.
在对文档进行分类的基础上，定义了一种双角色的基于角色的访问控制模型，并给出了此模型的数据流图及部分以XACML形式表示的控制策略。
Based on the classifying of the protected documents, a DR-RBAC model is defined, and its data-flow diagram and two examples of PolicySets expressed by XACML are given out.
应用推荐