# Framework for BIM-Based Repair History Management for Architectural Heritage
## 1 Introduction  
Wooden architectural heritage, which is typically heavily influenced by climatic factors such as temperature and humidity, relies on information contained in records and reports, including past repairs and physical measurements, to analyze the cause of damage and determine potential repair and conservation measures. In particular, architectural heritage management and conservation plans that rely on records from the past that remain undigitized for long periods of time suffer from fragmentation and missing information over time [1]. This, in turn, makes it difficult to restore and preserve cultural heritage in its original form, and can lead to a decline in cultural value as well as subsequent economic losses [2].  
The use of digital technologies, such as building information modeling (BIM) systems, can serve as a solution to this issue by replacing manual records and managing construction data throughout a building's lifecycle. BIM systems can also function as integrated management systems, linking geometry and attribute information for efficient data processing [3]. Especially for wooden structures, the continuous accumulation of information and data-driven decision making are critical for maintenance and preservation. Recent incidents, such as the fires at South Korea's Sungpneum Gate and France's Notre Dame Cathedral, underscore the global necessity for digitally integrated maintenance systems.  
BIM has emerged as a new area of interest in the cultural heritage domain, and it is commonly known as historic or heritage building information modeling (HBIM). Since its introduction by [PERSON] et al. [4], HBIM has been extensively developed with innovative applications at various levels in the fields of archaeology and architecturalheritage. Despite significant advances in the past decade, the integration of conservation-driven heritage data management remains incomplete [5]. To enable the sustainable archiving of architectural heritage data, an advanced management system that combines a geometrical model with preservation-related data is necessary to support the operation and maintenance phases effectively. Identifying and digitally documenting the current state and properties of heritage building components, along with all pertinent semantic information in a singular HBIM model, will establish a collaborative information management platform that optimizes the operation, preservation, and reconstruction stages [6]. This not only helps stakeholders make effective decisions throughout the lifecycle, but also furnishes a comprehensive overview.  
This study introduces a BIM-based repair history management framework aimed at enhancing the connection between the BIM of cultural heritage and the corresponding repair history records. This is achieved by developing an add-in for data synchronization to preserve architectural heritage. The proposed framework is applied to a South Korean architectural heritage case study, validating its model efficacy and demonstrating its effectiveness in repair history management through data visualization. This integration of HBIM with synchronized repair history for building elements showcases its practical utility.