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A consistent approach to the optimal selection of replacement technologies is required in industrial production. A conceptual framework for formalized representation of production technologies is outlined. The diversity of external and internal disturbances is discussed. Types of technological substitution are classified. The structure of a decision support system (DSS) and the content of its intellectual core are defined in the form of a high-level mathematical toolkit. Practical experience with the proposed tools in technological replacement is outlined. [ABSTRACT FROM AUTHOR]

A method is proposed for analysis of the stress–strain state of welds in large rolling-stock components, using SolidWorks/Simulation software. [ABSTRACT FROM AUTHOR]

It is possible to improve the quality of high-precision manufacturing products by adopting an individualized approach to the assembly process and testing possible component configurations in computer simulations. [ABSTRACT FROM AUTHOR]

A market analysis of additive technologies is presented. Three-dimensional printing is discussed, and Russian and non-Russian manufacturers of such equipment are noted. [ABSTRACT FROM AUTHOR]

The organization of management at high-tech enterprises during the development of innovative digital technologies is considered. Various aspects of management at Russian high-tech enterprises in a period of digitization are identified, and an innovative algorithm is developed for successful digital transformation of the enterprise. The basic aspects of management in a digital economy are discussed. [ABSTRACT FROM AUTHOR]

Attention focuses on the updating of production processes by systematic integration of innovations in the existing business strategy of a high-tech enterprise. The creation of an innovation system at a high-tech enterprise is considered, along with the structure and potential of such a system. The structure of a customized multicomponent innovation system at a high-tech enterprise is discussed, [ABSTRACT FROM AUTHOR]