Industrial Automatic Control Systems and Controllers Annotation << Back Network Model of Administration Role-based Access to Information Air Traffi c Control System Y.Y. Gromov, A.V. Yakovlev, A.M. Shuvaeva Currently, one of the pressing problems of the theory of computer security is to develop mathematical models of security access control and information fl ow in modern information systems. This problem arises both in the theoretical analysis of the security of information systems with the use of formal models and mechanisms for protection when tested using the procedures, methods and means of automation and computer modeling. The presented model role-based access to the components of the information system of air traffi c control based on Petri nets is subject to study static and dynamic properties, which allows its use as a basis for the development of algorithms and software. This model has a number of features that refl ect the specifi cs of the operation, the structure of relations jobs information system of air traffi c control in real time. Developed on the basis of the model software will enhance information security system of air traffi c control and will simplify its administration. Keywords: model of role-based access; role-based administration model access control; components of the information system; network model of role-based access control. Contacts: E-mail: gromovtambov@yandex.ru Pp. 44-51.