Волотка, В. С.2016-09-052016-09-052014http://openarchive.nure.ua/handle/document/2082A model of information and communication system is presented in the form of 4 main states: serviceable and unserviceable, each of them may be both in operative and standby modes. The main object of analysis is failure and appropriate parameters: mean time between fail-ures, availability coefficient, reliability probability, probability of survivability, an average total risk of failure probability.enThesis