The research objective is to study the technology of regeneration of an information control system. The article elaborates on the concept of regeneration in relation to technical and information systems. It is shown that the quality of a modern control system is determined by the quality of software, technology and data. The difference between updating the components of an information control system and regeneration of these components is shown. The article also determines the conditions for the application of updating the information control system. There are determined the conditions of regeneration of the information system components. In addition, the authors provide mathematical models of updating and regeneration. It is proved that the regeneration of components solves the problem of complementarity of the information system components. Updating a component does not solve this problem.

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