Classification of models of the housing and communal services management system

The article considers the solution of the problem of systematization of models used to manage housing and communal services. The purpose of the research is to clarify the classification of models used to model the activities of enterprises in the field of housing and communal services, regional housing and communal services, as well as housing and communal services in general. The object of research in this work is housing and communal services. The subject of research is the set of models used to manage housing and communal services. The initial data for research are materials on the subject area "Models in the management of housing and communal services", given in the works of Russian scientists. The research methods used in the work include a systematic approach, methods of analysis and synthesis, as well as a set-theoretic approach. As a result of the analysis of publications in the selected subject area, eight types of models were identified. The correspondence of models of various types, obtained as a result of research, to the classification of models obtained earlier is considered. The classification of models obtained earlier has been refined due to the emergence of new models using various types of optimization, due to new models using digital twins of buildings, as well as due to new formal theoretical models that describe the methodology for creating models taking into account various factors.