Time Constraint RBAC Model Based on OCL
Zhang Sha-sha · Computer Knowledge and Technology · 2009
Access control model based on the role obtains wide spread application in many system's jurisdiction management because of its flexibility,convenience and security,but the role access control after introducing the time-constraint can strengthen system's security and the model descriptive power.This article uses object restraint language OCL to describe the time-constraint in the model,and it makes the model to be more direct-viewing and more precise.