Aerospace Instrument-Making Annotation << Back Applied Aspects of Platform-Oriented Conceptual Design of Digital Twins of Rocket and Space Technology Products Okhtilev P.A., Markova A.A., Panin A.K., Polpudnikov V.O., Cheverda I.A. This article focuses on developing an approach for organizing the conceptual design of digital twins of aerospace products based on the principles of model-based systems engineering. It demonstrates that the tools applied at the early stages of design do not provide effective support for exploring alternative technical solutions. To address this, a method is proposed for formalizing empirical knowledge regarding the acceptability of design decisions through the creation of a parametric product model, grounded in a system of predefined constraints for automated verification of the evaluated configurations. This approach enables the integration of the product’s structural model with a three-dimensional representation of the digital twin, ensuring preservation of B-Rep engineering semantics and parametric control over component geometry. For web-based visualization of the product configuration, a hybrid microservice architecture has been implemented, combining server-side processing of mathematical models with graphical rendering of the digital twin’s state based on telemetry data. Collectively, these solutions form a unifi ed information space for the implementation of intelligent analysis and optimization methods, which can serve as a foundation for reproducibility of results in the serial production of aerospace products. Keywords: digital twin, aerospace products, conceptual design, MBSE, proactive control, parametric representation, CAD models, threedimensional modeling. DOI: 10.25791/aviakosmos.6.2026.1566 Pp. 51-59.