Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Multilevel authorization by means of the role mechanism of management by access to information in critical segments of the information infrastructure A.S. DUBROVIN D.B. DESYATOV A.V. DUSHKIN A.S. KRAVCHENKO R.V. KUZMENKO The problem of use of the environment of development of software products of MS Visual Studio is considered at creation of key systems of information infrastructure in its crucial segments. The methodological approach to realization in such systems of reference model of the protected automated system on the.NET platform is offered. Multilevel authorization by means of the role mechanism of management is modelled by access to information to.NET Framework with use theory of counts. Keywords: crucial segment of information infrastructure of the Russian Federation, reference model of the protected automated system, key system of information infrastructure.NET Framework, permission of safety, permission of principals, the certificate, the principal. Contacts: E-mail: galina@ailab.mephi.ru Pp. 37-42.