Unified data model for defining state critical information infrastructure in civil aviation

State critical systems and resources can be damaged. By this means most of world leader states have attended to methods and means of identifying, systematization and security assurance for critical infrastructure objects. Loss or operational breakdown of these objects can cause significant or irreparably damage for national security of the state. However, as shown by the analysis of the domestic normative base, today in Ukraine an exhaustive list of objects of the critical information infrastructure of the state is not yet formed and there is no clear mechanism for the objects defining. Given the above, the paper proposes a unified data model for the formation of critical information infrastructure of the state objects list and, on the basis of the developed model, a list of critical objects in civil aviation is formed. In further works is planned to develop efficient methods and tools for identifying and ranking objects, defined using the proposed model of data.