Security Model for Federated Database Systems

One of the new emerging technologies for data management today is represented by federate systems. Security enforcement at the federation level must take into consideration the protection requirements and protection policies of each participating site. This task can be further complicated by the heterogeneity of the constituent systems, which may enforce protection policies either difficult to combine or inconsistent with each other. The need to share data in the federation on one side and to maintain site autonomy on the other side raises several protection requirements which traditional security models do not address. So this paper proposes the security model for federated database systems.