Ontology as a reflexive picture of the performance of economic systems

World science has long been successfully using ontological concepts to understand the world and its parts in various human activities. Scientific literature and empirical research allowed to choose the forms and content of ontologies, to determine their nature and purpose. There is a need for a theoretical and methodological description to use ontologies in economic systems of any complexity. The ontology allows to justify or change the parameters of the study and design of processes, phenomena, events in economic systems at any level.