Defining access control policy for infrastructures with mass integration of databases

As shows the review provided in this paper, access control to distributed services and resources remains area of active researches. Despite the existence of a large number of formalized models describing access control, possibility of their application in specific conditions can be problematic. This work is devoted to a way of description of access control policy to the structured data which are stored in information infrastructures formed by virtual integration of distributed heterogeneous relational databases.