Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Database security
Role-Based Access Control Models
Computer
Argos—a configurable access control system for interoperable environments
Proceedings of the ninth annual IFIP TC11 WG11.3 working conference on Database security IX : status and prospects: status and prospects
Mandatory access control and role-based access control revisited
RBAC '97 Proceedings of the second ACM workshop on Role-based access control
On the interaction between role-based access control and relational databases
Proceedings of the tenth annual IFIP TC11/WG11.3 international conference on Database security: volume X : status and prospects: status and prospects
The role graph model and conflict of interest
ACM Transactions on Information and System Security (TISSEC) - Special issue on role-based access control
Modelling Unix system security with a role graph
Modelling Unix system security with a role graph
Configuring role-based access control to enforce mandatory and discretionary access control policies
ACM Transactions on Information and System Security (TISSEC)
An Approach for Building Secure Database Federations
VLDB '94 Proceedings of the 20th International Conference on Very Large Data Bases
Access Rights Administration in Role-Based Security Systems
Proceedings of the IFIP WG11.3 Working Conference on Database Security VII
Designing Security Agents for the DOK Federated System
Proceedings of the IFIP TC11 WG11.3 Eleventh International Conference on Database Securty XI: Status and Prospects
Merging Heterogeneous Security Orderings
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
An Authorization Model for Federated Systems
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
Role Hierarchies and Constraints for Lattice-Based Access Controls
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
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Role-based access control provides a very flexible set of mechanisms for managing the access control of a complex system with many users, objects and applications. The role graph model of Nyanchama and Osborn is one example of how role administration algorithms can be implemented. In our previous research, we have also shown how the access control information of existing systems can be extracted and represented as a role graph. In this paper, we extend this research by showing how, when two systems are being integrated, their role graphs can also be integrated.