Stelmashenko, M.Deveciogullari, A.2026-03-032026-03-032026Stelmashenko, M. Software development cost prediction method / M. Stelmashenko, A. Deveciogullari // Адаптивні системи автоматичного управління : міжвідомчий науково-технічний збірник. – 2026. – № 1 (48). – С. 3-10. – Бібліогр.: 8 назв.https://ela.kpi.ua/handle/123456789/79188The task of accurate software development cost estimation is especially relevant in the context of a dynamic IT market and growing demand for effective project management. Traditional methods often lack flexibility and are labor-intensive, especially at early stages marked by high uncertainty. This article presents a software cost prediction method based on fuzzy logic, which accounts for uncertainty in input parameters, expert judgments, and domain-specific features without requiring strict mathematical formalization. The proposed model performs a full cycle of fuzzy inference, resulting in an interpretable interval forecast. Experimental evaluation shows that the method produces realistic estimates with error-aware intervals, supporting budget planning, risk assessment, and informed decision-making in IT project managementensoftware cost estimationfuzzy logicdecision supportuncertaintyproject managementinterval forecastingArticleС. 3-10https://doi.org/10.20535/1560-8956.48.2026.351874004.415