Description of the information-logical model of technology of production of building products using industrial waste and the IDEF1X methodology

: The article describes the information-logical model (ILM) ofthe technology production of construction products using industrial waste, developed according to the IDEF1X methodology. The entity connectionsare shown and analyzed, the types of connections, the use of primary and foreign keys are defined. The use of IDEF1X methodologyis shown, it is used in the development of relational databases, conditional syntax, specially designed for easy construction of a conceptual scheme. The advantages of the IDEF1X methodology are described. summary of preserving the structure of the article introduction/ problem statement/ goals/ history, research methods, results /discussion, conclusion). Abstract: The computational (numerical) diameter is used to completely solve the problem of approximate differentiation of a function given inexact information in the form of an arbitrary finite set of trigonometric Fourier coefficients. [100-200 words]