Automation of procurement activities is considered one of the most well-known applications of IT solutions, since procurement is an integral element of the work of any organization and must be a holistic, systematic process that provides the opportunity to receive all those products, works, offers and services that are so important to the organization with the least expenditure of resources and resources in time. The article highlights the list of functional capabilities of various systems and describes the results of a formalized analysis of the functional completeness of these systems of the procurement session. The analysis also included a conditional system with the desired functionality, according to which it will be clear how this or that system is suitable for the customer.

Keywords: procurement session, procurement activity, comparative analysis of functional completeness, auction, reduction, lot, bid, analysis of compliance of user requirements to systems, similarity of systems

The article proposes a new formulation of the knapsack problem, and also considers the mathematical model used to solve the problem of choosing the optimal strategy for information protection of distributed systems. The essence of the new task is expressed in the use of a set of goals when completing a knapsack.

Keywords: Information security, information protection, distributed system, combinatorial problem, mathematical modeling, knapsack problem, equivalence, model of threats.

This article discusses the concept of information security, its structure and development stages, shows the diversity and the equivalence of the remedies and discusses existing approaches to the formation of protecting corporate systems on the basis of which it was proposed to address this problem, based on the method of decision theory.

Keywords: information security, information security devices, knapsack problem, points of placement of remedies of information security, the formation of information security, distributed systems, mathematical model

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