A.F. Ulasen1, A.V. Klyuevв2, O.N. Andreeva3, S.D. Zharovsky4, A.K. Kapernaumov5

1−2 Military Academy of Military Air Defense of the Armed Forces of RF (Smolensk, Russia)

3 JSC Concern Morinsis-Agat (Moscow, Russia)

4−5 RTU MIREA (Moscow, Russia)

A feature of the «reliability behavior» of modern control computing systems is the dual nature of the primary threats to the reliability of the hardware platform. It is due to the fact that the distortion of the information processed by the system can occur both due to the destruction of its physical carrier, and without it, due to the effects of interference of various nature. In the first case, there is a steady failure of the system elements, and in the second case, a malfunction of the system elements. The issues of ensuring the proper functioning of a computer system in such conditions are considered at the junction of two directions of the general theory of reliability: structural and functional reliability, which creates the need to improve the corresponding conceptual apparatus.

The problem considered in the article is the imperfection of the conceptual apparatus of the theory of functional reliability of control computing systems in the conditions of the dual nature of threats to the reliability of the hardware platform. The purpose of the work is to develop the terminology of the theory of functional reliability of control computing systems. The paper analyzes the conceptual framework of the theory of functional reliability of computing systems, offers an updated tree of functional reliability of control computing systems, taking into account the features of stable failures and failures of the hardware platform. The result of the work is a refined set of terms and definitions of the basic concepts of the theory of functional reliability in the conditions of the dual nature of threats to the reliability of the hardware platform.

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