The article describes a mathematical model of a three-tier client-server architecture. The importance of using an intermediate server (application server), which provides preliminary data processing, is shown. Analytical conditions are obtained under which a three-tier architecture is more efficient than a two-tier one. Methods are proposed for increasing the performance of client-server systems in the tasks of automating production processes.

The paper considers possible application of modern prognostication techniques as an element of a quality control system. Applied mathematical tools are the artificial indistinct neural networks with the inverse distribution of a TSK type architecture error. The analysis is made of the factors influencing the ferroconcrete durability. The selected input characteristics are: the sand fineness module, the number of of a lamellar and needle-shaped grains in crushed stone, cement volume weight, of a cement stone strength. The output parameter is the arithmetical mean value of the destroying force by the results of three experiments. The MS Access database was formed on the basis of the laboratory logbooks of the production input control. Two groups of tuples are formed: for training of indistinct neural network and for adequacy tests of the trained network. Mathematical model showed the efficiency of testing. The average error value was 9.6 kg/cm2 or 2%.

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The global development of information technology is increasingly integrated into all spheres of human life and is no exception to the technological field in which one of the most promising is the development of air conditioning systems with controlled microclimate. This study discusses some aspects of climate control using programmable logic microcontrollers. This study improves the efficiency of the use of air traffic control systems in the penitentiary system of the Russian Federation through the use of modern achievements of science and technology. The article presents two options for using different levels of automation in climate control systems in closed rooms of the Russian penitentiary system, depending on the volume of production, the algorithms of the climate control system are considered.