2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/32122The concept of the "modulus" in the CAD system drawings is characterized, being a base of developing of the problem-oriented extensions. The modulus consists of visible geometric elements of the drawing and invisible parametric representation of the modelling object. The technological advantages of moduluss in a complex CAD system developing are described.2 pages, no figures, in RussianComputational Engineering, Finance, and ScienceData Structures and AlgorithmsJ.6The modulus in the CAD system drawings as a base of developing of the problem-oriented extensionstext