# Framework for BIM-Based Repair History Management for Architectural Heritage
## 2 Literature Review  
Heritage structures demand appropriate preservation and safeguarding measures to retain their intrinsic worth and significance. Notably, the utilization of conservation and restoration techniques grounded in original and traditional approaches, while respecting culturally significant values and evolving authenticity, is imperative. These viewpoints regarding cultural property conservation policy and practice are comprehensively outlined in the Venice Charter [7], the Burra Charter [8], and the Nara Document on Authenticity [9]. The principles of conservation are centered around safeguarding the cultural significance of a building, and guidelines are established to ensure the preservation and maintenance of the structural integrity of a building [10]. Preventure maintenance is a necessary set of routine tasks that extend the longevity and optimize the performance of historic structures, creating a sustainable legacy for future generations. These regular maintenance measures are crucial for preserving built heritage. Restoration techniques aim to efficiently restore the functional and cultural value of architectural heritage to its original state as closely as possible. For instance, when dealing with wooden architectural heritage, it is crucial to develop a restoration plan that preserves cultural heritage's utmost originality. This may involve repairing or replacing certain wooden elements damaged by environmental factors and establishing an efficient process that minimizes resource, time, and cost usage; however, the issue arises that managing the as-built information necessary for performing maintenance and restoration activities, along with the accumulated repair information, is challenging to integrate [11]. Building information modeling is the process of creating and utilizing building data throughout the lifecycle of a construction project. The functional model of a typical BIM system encompasses the efficient digital documentation of a building's physical and functional features within an integrated environment and the operational management of various facilities. The full-scale implementation of BIM in the architectural heritage sector is hindered by the complex geometry of heritage buildings and the non-standardization as well as diversity of part types, despite its potential benefits and uses. Unlike traditional construction projects, where BIM information is generated throughout the planning and construction processes, architectural heritage structures are already built and necessitate a precise post-modeling phase. Specifically, historical, environmental, and archaeological data must be collected independently and digitized to facilitate the operation and upkeep of the building. Therefore, it is essential to establish a framework for creating a precise 3D digital model along with merged maintenance data, encompassing damage, repair, and refurbishment. Figure 1 presents an overview of the existing and overlapping literature concerning BIM, heritage buildings, and facilities' management as well as preservation. The circles depict  
research topics, and the bullet points within the rectangular boxes illustrate the research focus or overlap of each topic. Building information models utilize the OpenBIM standard to store a wide range of building properties as an information model, encompassing geometric data, non-shape attributes, project planning, and lifecycle management [12; 13]. This method aligns with the fundamental concepts of object-oriented programming and modeling. In the context of heritage architecture, the HBIM concept has been used to model, document, and conserve historical structures. Several studies have investigated the implementation process and techniques of HBIM [14; 15; 16; 17; 18]. They have also examined its benefits and drawbacks in improving maintenance and operational efficiency.