## 3 Benefits of a BIM-Based DT
### Improvement for Managing Data  
Research studies have been done to highlight that, if used from the start of the project, BIM can contain static and semantic data of the entire project, such as providing digital continuity throughout its lifecycle [16; 28; 40]. To ensure this continuity and the interoperability between the different phases of the project, some authors have proposed  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Research Topics** & **Benefits** & **Reference** \\ \hline \multirow{4}{*}{Usage of a BIM-based DT} & Early optimisation of the building & [28; 29; 30] \\  & Lifecycle management of the building & [16; 31; 32; 33; 34; 35; 36] \\  & Condition assessment & [37; 38; 39] \\  & Optimisation of existing operations & [39; 40; 41; 42] \\ \hline \multirow{4}{*}{Creation of a DT using a BIM} & DT as an evolved BIM with real-time data & [29; 32; 35; 37; 38; 39; 40; 42] \\  & BIM provide geometrical data /3D model & [16; 29; 31; 33; 35; 37; 38; 39; 40; 41; 42] \\  & BIM contains static data & [28; 35; 40; 42] \\ \hline \multirow{4}{*}{Benefits of a BIM-based DT for lifecycle management} & BIM mainly used in early stages of the lifecycle & [16; 28; 40] \\  & Simulations/Predictions of building lifecycle & [28; 29; 31; 41] \\ \cline{1-1}  & Improve decision-making & [28; 29; 31; 32; 35; 37; 38; 39; 40; 41; 42] \\ \cline{1-1}  & Improve operations & [32; 33; 36; 40] \\ \hline \multirow{4}{*}{Improvements for data} & Centralised source/Data sharing & [16; 29; 32; 33; 38; 40; 41] \\ \cline{1-1}  & Digital continuity/Interoperability & [16; 28; 29; 32; 34; 35; 36; 40; 41; 42] \\ \cline{1-1}  & Data linked to models & [32; 33; 34; 37; 41; 43] \\ \hline \hline \end{tabular}
\end{table}
Table 2: BIM as a basis for creating a DT for the construction industry.  
methodologies and points of concern to prevent any loss of data between the different phases [16; 28; 29; 32; 34; 35; 36; 37; 40; 41]. [PERSON] et al. propose such a methodology to explain how the data are transferred throughout the building lifecycle [36]. It has been shown that the centralised property offered by a singular BIM-based DT can improve data access by the different stakeholders of the project [16; 29; 32; 33; 38; 40; 41]. [PERSON] highlights how such centralisation can help to prevent missing or conflicting information during the management of an airport [41]. Through this centralisation, they can provide their own knowledge and expertise for further analysis. The 3D representation of physical equipment provided by the BIM can be used to improve the clarity and accessibility of the data once it has been linked to their corresponding equipment [32; 33; 34; 37; 41; 43]. [PERSON] et al. show how this link can help access data during inspection procedures, for example [43]. Once the data are linked, the user can obtain all the knowledge gathered about the specific equipment they are focusing on. These various improvements in data accessibility and expertise provide important support when decisions have to be made (e.g., choosing the maintenance procedure to be performed, identifying the faulty equipment) [28; 29; 31; 32; 33; 34; 35; 37; 38; 40; 41; 42].