A formal model is proposed to describe time character of constraint in this paper.
提出一套形式化地描述时间特性的模型，使之能够描述带时间特性的授权约束。
The present paper covers the newsboy model with budget cost constraint.
讨论带有预算费用约束的报童问题。
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 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。
应用推荐