Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Access control in distributed heterogeneous database management systems
Computers and Security
Role-Based Access Control Models
Computer
Analysis, comparison and design of role-based security specifications
Data & Knowledge Engineering
Security enforcement in the DOK federated database system
Proceedings of the tenth annual IFIP TC11/WG11.3 international conference on Database security: volume X : status and prospects: status and prospects
How to do discretionary access control using roles
RBAC '98 Proceedings of the third ACM workshop on Role-based access control
An object approach for information system cooperation
Information Systems - Special issue on selected papers from 6th annual workshop on information technologies and systems, December 1996, Cleveland, Ohio, USA
An Approach for Building Secure Database Federations
VLDB '94 Proceedings of the 20th International Conference on Very Large Data Bases
A Multilevel Secure Federated Database
Proceedings of the IFIP WG11.3 Working Conference on Database Security VII
Role Hierarchies and Constraints for Lattice-Based Access Controls
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
Canonical Security Modeling for Federated Databases
Proceedings of the IFIP WG 2.6 Database Semantics Conference on Interoperable Database Systems (DS-5)
Semantic Cooperation of Legacy Information Systems: An Object-Oriented Framework
DEXA '97 Proceedings of the 8th International Workshop on Database and Expert Systems Applications
Security for Object-Oriented Database Systems
SP '92 Proceedings of the 1992 IEEE Symposium on Security and Privacy
Access Control of Federated Information Systems
EuroISI '08 Proceedings of the 1st European Conference on Intelligence and Security Informatics
An agent and RBAC model to secure cooperative information systems
Proceedings of the International Conference on Management of Emergent Digital EcoSystems
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Data access security in federated information systems with loose coupling among local data sources is hard to achieve mainly for two reasons: local data information source heterogeneity (data models, access security models, semantics...), local autonomy which do not allow to create a global integrated consistent security schema. To solve some of such problems we propose a role-based object model to describe the local data access security schemas (discretionary and non-discretionary models). Interoperability among the various local data sources is achieved by a rich descriptive layer at the federated level. The global security policy allows to define the choices concerning information flow control both for importation (from the federation to a local system) and exportation (from a local system to the federation).