【摘要】 工程图纸设计是一个典型的工作流,它是严格的、由一系列相关设计任务组成的自动化过程。实际的工程图纸设计包含许多环节,如设计、提交、修改和审核等。不同的设计和管理人员在整个流程的不同阶段协同工作,并在每一阶段实现特定的目标。工程图纸设计工作流的这一特点使得授权成为其中的一个关键问题。针对此问题在分析经典基于角色的访问控制授权模型的基础上提出一种新的工作流授权模型SODAM。该模型引入了服务和动态授权的概念,增强了对用户权限和角色的控制,并使得授权对工作流的动态变化有了更强的适应性。最后给出了该模型在实时工程图纸设计系统中的应用。更多还原

【Abstract】 A drawing design workflow is a typical workflow,and it is a strict coordinated arrangement of related tasks in an automated process.The process includes a lot of steps such as design,submit,revision,verify and so on.Different engineers and managers participate in the systematic execution of the process,and some goals are achieved in each step.Wherefore,authorization becomes an essential and fundamental part in the flow.The workflow and participants of drawing design are analyzed,and an RBAC based authori-zation model SODAM is proposed in this work.Service and dynamic authorization are introduced,by which role and permission are effectively controlled and authorization of dynamic workflow is made more adaptive and flexible.A real-time drawing design system is developed to verify the effectiveness of the proposed model.更多还原