关键词: 工作流 任务状态 访问控制 权限

Abstract:

Authorization is a key problem in workflow access control. Based on the status of tasks, the relationships between roles and tasks, tasks and status,    and status and privileges are depicted with a two-dimensional matrix. Using the table of database to calculate the relationship between the role, task a nd privilege, it can dynamically distribute privileges and improve the security of data access.

Key words: workflow task status access control privilege