Constraint is an important aspect of role based access control and is sometimes argued to be the principal motivation for role based access control (RBAC). But so far few authors have discussed consistency maintenan...Constraint is an important aspect of role based access control and is sometimes argued to be the principal motivation for role based access control (RBAC). But so far few authors have discussed consistency maintenance for constraint in RBAC model. Based on researches of constraints among roles and types of inconsistency among constraints, this paper introduces corresponding formal rules, rule based reasoning and corresponding methods to detect, avoid and resolve these inconsistencies. Finally, the paper introduces briefly the application of consistency maintenance in ZD PDM, an enterprise oriented product data management (PDM) system.展开更多
The systematical structure of the role-based access control was analyzed,giving a full description of the definitions of user,user access,and the relation between post role and access. It puts forward a role-based acc...The systematical structure of the role-based access control was analyzed,giving a full description of the definitions of user,user access,and the relation between post role and access. It puts forward a role-based access control management which is relatively independent in the applied system. This management achieves the control on user's access by distribution and cancel of role-play,which is a better solution to the problems of the access control management for the applied system. Besides,a complete scheme for the realization of this access control was provided.展开更多
文摘Constraint is an important aspect of role based access control and is sometimes argued to be the principal motivation for role based access control (RBAC). But so far few authors have discussed consistency maintenance for constraint in RBAC model. Based on researches of constraints among roles and types of inconsistency among constraints, this paper introduces corresponding formal rules, rule based reasoning and corresponding methods to detect, avoid and resolve these inconsistencies. Finally, the paper introduces briefly the application of consistency maintenance in ZD PDM, an enterprise oriented product data management (PDM) system.
文摘The systematical structure of the role-based access control was analyzed,giving a full description of the definitions of user,user access,and the relation between post role and access. It puts forward a role-based access control management which is relatively independent in the applied system. This management achieves the control on user's access by distribution and cancel of role-play,which is a better solution to the problems of the access control management for the applied system. Besides,a complete scheme for the realization of this access control was provided.
