# Framework for BIM-Based Repair History Management for Architectural Heritage
## 5 Development of a BIM-Based Repair History Management Framework
### Data Collection and Selection
\begin{table}
\begin{tabular}{c|c c c|c c} \multicolumn{6}{c}{**Regular History Database**} \\ \hline \multirow{3}{*}{**Basic Information**} & \(\bullet\) & Object classification code & & \(\bullet\) & Installation year \\  & \(\bullet\) & Part object name & & & \\ \cline{2-6}  & \(\bullet\) & Material type & \(\bullet\) & Supplementary materials & \(\bullet\) & Amount used (m\({}^{3}\); m\({}^{2}\); kg) \\ \cline{2-6}  & \(\bullet\) & Domestic or foreign & \(\bullet\) & References & & \\ \hline \multirow{3}{*}{**Repair History (until 1899)**} & \(\bullet\) & Repair details & \(\bullet\) & References & \(\bullet\) & Repair year \\  & \(\bullet\) & Supplementary materials & & & \\ \hline \multirow{3}{*}{**Repair History (since 1990)**} & \(\bullet\) & Repair details & \(\bullet\) & Supplementary materials & \(\bullet\) & Repair year \\  & \(\bullet\) & Damage type & \(\bullet\) & References & & \\ \cline{2-6}  & \(\bullet\) & T\&M type & \(\bullet\) & Reasons for T\&M & \\ \cline{2-6}  & \(\bullet\) & Before T\&M & \(\bullet\) & Supplementary materials & \\ \cline{2-6}  & \(\bullet\) & After T\&M & \(\bullet\) & References & \\ \hline \multirow{3}{*}{**Additional Element Information**} & \(\bullet\) & Shape & \(\bullet\) & References & \(\bullet\) & Dimensions \\  & \(\bullet\) & Joint method & \(\bullet\) & Traces of tool use & \(\bullet\) & Installed quantity \\ \cline{1-1} \cline{2-6}  & \(\bullet\) & Additional classification & \(\bullet\) & Composite element & \(\bullet\) & Production period \\ \cline{1-1} \cline{2-6}  & \(\bullet\) & Old element & \(\bullet\) & Estimation & \\ \cline{1-1}  & \(\bullet\) & Production method & \(\bullet\) & Supplementary materials & \\ \cline{1-1} \cline{2-6}  & \(\bullet\) & Installation marks & & Property information & & Property information \\ \cline{1-1} \cline{2-6}  & & & & & \\ \cline{1-1} \cline{2-6}  & & & & & \\ \cline{1-1} \cline{2-6}  & & & & & \\ \end{tabular}
\end{table} 
Table 1: Detailed data entries in the repair history database according to the level of information (LOI). Figure 5: (**a**) BIM and (**b**) repair history records of the target heritage building. configuration information and repair history record. Detailed explanations are provided in the subsequent section. The material information consists of primary, subsidiary, and finish materials, which include information on the materials, production, and usage of each component, such as wood, stone, metal, and paper. The repair history, which is core information for the maintenance of architectural heritage, is divided into repair information before and after the 1900s. The reason why the information is divided based on the year 1900 is that most of the data before the 1900s are old documents or map data, with no detailed repair history records; however, there are records of investigations and dismantling as well as repair work of entire heritage buildings during the Japanese colonial period in the 1900s, and relatively detailed repair records have been maintained under the management of related organizations afterwards [39]. Therefore, repair history before 1900 is classified as LOI 3 information. Repair history since the 1900s, which is included from LOI 2, consists of the year of repair, repair type, such as replacement, reinforcement treatment, and preservation treatment, and damage types, such as physical, chemical, and biological damage. T and M history includes information on changes in style, shape, structure, technique, and materials based on investigations and historical evidence. Finally, additional element information is appended for cases requiring additional information due to the characteristics of the target heritage building. In the repair history database, repair information of architectural heritage is entered as structured data according to the categories described above, and the characteristic information of each component of HBIM is entered with integers for quantitative data and strings or URLs for qualitative data, depending on the type.