Being a prerequisite for the further development of the procurement system, digitalization completely changes the purchasing function and affects its effectiveness through various factors, the main of which are quality and savings, risk minimization, and speed increase. In short, all of the above allows to achieve leading position and prominent standing. Moreover, through using digital technologies it is possible to identify those places in the supply chain where failures are associated with the factors highlighted in this study, eliminate them, and in the future predict in advance and minimize the occurrence of a repeated situation. In addition, the use of technology leads to the necessity of a new efficiency system with new key performance indicators. In the future, collecting information on key indicators allows to build an econometric model for evaluating the effectiveness of the procurement system as a whole, taking into account the use of digital technologies, which will be relevant for state and municipal procurement bodies.

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The monograph is devoted to the problem of mathematical modeling of process of interaction of the bullet with the block simulator with a finite element method that enables the assessment of the damaging effect of bullets at the design stage, the development of neural network based on the evaluation of those factors on the parameters of the damaging effect of bullets provides a characterization of the striking element on the stages of the pilot study, conceptual design and technical design and development of methods for the assessment of the damaging effect of bullets of small arms ammunition, taking into account elastico viscous state of the target.