This article describes the development of a methodology or algorithm for preparing an information model for transferring it to the operation service. The following issues are addressed: analysis of the use of BIM-model at the operational stage; analysis of the difficulties encountered when using unprepared BIM-model in operation; synthesis of existing and development of alternative recommendations for filling the information model with data at each stage of design and construction for subsequent use in the operation service; the study of tools that help in the preparation of BIM-model; development of algorithms that optimize the preparation of an information model for the operation of an object.