Integrating diverse Industry Foundation Classes (IFC) models from various disciplines into a single comprehensive graph database presents formidable challenges. Each discipline contributes unique data structures and semantics, necessitating the harmonization of architectural, structural, and Heating, Ventilation, and Air Conditioning (HVAC) information into a unified framework. Additionally, merging geometry while considering the intricate topology and adjacencies defined within the IFC models further complicates the process, requiring a sophisticated approach to capture the spatial relationships inherent in building structures. Many data retrieval queries pose challenges when using existing software, primarily because they typically work with single IFC models. The intricate hierarchical arrangement of the IFC schema hinders straightforward manual extraction of building information, demanding a profound comprehension of the IFC object model. Existing BIM query languages have limitations, notably in terms of the extensive understanding of the IFC object model and data mapping mechanisms required by users. To address these challenges, a comprehensive graph database emerges as a vital solution. By representing building information as nodes and edges within a graph, it becomes possible to capture the rich network of connections between architectural elements, structural components, and HVAC systems. This approach not only facilitates the integration of diverse data sources but also enables a holistic understanding of building structures, paving the way for advanced applications such as digital twins and informed decision-making in building management.     «

Integrating diverse Industry Foundation Classes (IFC) models from various disciplines into a single comprehensive graph database presents formidable challenges. Each discipline contributes unique data structures and semantics, necessitating the harmonization of architectural, structural, and Heating, Ventilation, and Air Conditioning (HVAC) information into a unified framework. Additionally, merging geometry while considering the intricate topology and adjacencies defined within the IFC models f...     »