Effective Building Operation Through the Building's Digital Twin ; Case Study

In recent years, many industries have moved forward significantly in terms of digitisation. However, the construction sector is lagging far behind. A suitable solution to move the construction sector forward is the use of the Building Information Model (BIM). A building model developed in this way can be used not only for design and construction, but in recent years it has been shown that this model has the greatest benefit in the management and maintenance of the building itself. Thanks to modern support tools, it is possible to prevent failures in time and thus prevent the building from being decommissioned. In this context, this paper focuses on supporting digital tools such as: the information model of the building, applications for building management and maintenance, which can be linked to the information model of the building to obtain a "living" building, which can be called the digital twin of the building. This paper also includes a case study that just deals with the connection of an existing building during management and maintenance with a BIM model. The aim of this paper is not only to increase the progress of digitalization in the building sector but also to show what benefits digital tools bring with them what are the future lines of research and what are the challenges associated with this issue.