Authorization constraint is an important part in role-based access control models.
授权约束是基于角色的访问控制模型中一个非常重要的部分。
The traditional RBAC model cannot express complicated workflow secure access control constraint.
传统的RBAC访问控制模型已经不能表达复杂的工作流安全访问控制约束。
The problem of optimal control in face of control constraint is studied.
研究了系统存在控制量约束时的优化控制问题。
The problem of optimal control in face of control constraint is studied.
研究了系统存在控制量约束时的优化控制问题。
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