# Framework for BIM-Based Repair History Management for Architectural Heritage
## 5 Development of a BIM-Based Repair History Management Framework
### Data Collection and Selection  
The DB manager collects repair history records for each part of HBIM during the data collection and selection stages. The collected information includes data related to repair work, such as design books, repair reports, and supervision reports. Architectural heritage comprises diverse materials, and a distinct approach must be adopted for each component based on its type, material, and current state to preserve its historical value and authenticity. Repair history data should include detailed information regarding cause and effect, phenomena, and countermeasures for each component and be structured according to standardized principles and regulations. Such data can be used as evidence in decision-making processes for restoring architectural heritage in the future. Consistent object classification and attribute information input are necessary for ensuring interoperability and compatibility with other systems. The data mapping automation system for the proposed integrated HBIM uses the repair history database of the Great Hero Hall of Sudeoksa Temple in Yesan, South Korea (Figure 5). The Great Hero Hall is the oldest wooden building in South Korea with a known foundation date, dating back to the Goryeo period (1308). It has a single-story gable roof design and features three front and four side compartments. In 1937, the building underwent a complete dismantling and subsequent repair, during which extensively damaged parts were replaced, and any elements that had been modified from their original style and shape at the time of construction were removed and restored to their original form wherever feasible [38]. The Great Hero Hall was designated as National Treasure No. 49 on 20 December 1962, in recognition of its well-preserved Goryeo wooden architectural form, which exudes aesthetic beauty. Figure 4: Process of the BIM-based architectural heritage management system. The data mapping automation system for the proposed integrated HBIM in this study uses the repair history database of the Great Hero Hall of Sudeoksa Temple in Yesan, South Korea, which was constructed by the Far East Architectural History Lab (FAHL) at Hanyang University, South Korea, in accordance with HBIM Standard v1.1.3 of the Cultural Heritage Administration [32]. This database was created based on repair and maintenance data of archival materials, such as the compilation of repair history of the target building in 2020 by the National Research Institute of Cultural Heritage (Table 1). The database is classified into major, medium, small, and sub-classifications of the target architectural cultural heritage based on a classification system and comprises attribute information linking each part's material and repair history information. The repair history database comprises fundamental information, material information, repair history, transformation and modification (T and M) history, and additional element information. Detailed data beyond the minimum expression level are input according to the level of information (LOI). The basic information includes the object classification code, part object name, and installation year, which represent the part's information. The object classification code includes the part object name and index code according to the HBIM creation standards and serves as a reference parameter for mapping the HBIM