Lytvyn, V.Oborska, O.Demchuk, A.Krupa, D.2018-02-122018-02-122017Decision support methods in a competitive environment based on Boyd cycle by means of ontology use / V. Lytvyn, O. Oborska, A. Demchuk, D. Krupa // Econtechmod : an international quarterly journal on economics in technology, new technologies and modelling processes. – Lublin ; Rzeszow, 2017. – Volum 6, number 2. – P. 21–26. – Bibliography: 31 titles.https://ena.lpnu.ua/handle/ntb/39415The method of decision making system elaboration in competitive environment based on ontological approach was developed. For scientific modeling of decision support process in competitive environment, mathematical support and methods of domain-specific ontology in the Boyd cycle (OODA – observation, orientation, decision, action) were elaborated.endecision support system (DSS)ontologyknowledge databaseBoyd cycle (OODA)observationorientationdecisionactiongenetic algorithmsexpected valueprobabilityArticle21-26