## 7 An Empirical Case  
Finally, this study used an empirical case to validate the conceptual framework linking BIM and prefabricated building supply chain resilience. A general building construction contractor in China, hereinafter named Company A, is selected as the object of study. Company A is a qualified enterprise with a complete assembly of the whole industry chain, often engaged in the supply chain network as an Engineering Procurement Construction (EPC) general contractor. It is committed to becoming a first-class green building integrated service provider. As a market leader in terms of size and competitive strength, the organization has applied BIM technology to build an integrated intelligent construction information system and constructed a \"design-production-construction-maintenance\" value chain based on an integrated operation platform. Over the years, it has relied on BIM to assist in the construction of several of its prefabricated building projects. The case information was mainly collected based on existing documents about the organization and internet-based information. In addition, we conducted an in-depth interview with a key informant from the organization, who not only has experience in managing and operating BIM projects but also acts as a consultant responsible for developing BIM target work plans, BIM standards and specifications, etc. The interviewee has more than 3 years of working experience in BIM use and is able to provide sufficient information about the application of BIM in the assembly building supply chain of the case organization. The interview questions were designed based on the conceptual framework for BIM and prefabricated building supply chain resilience. We mainly asked the key informant how BIM affected prefabricated building supply chain management. Sample questions include: (1) How does BIM affect design capability and assembly construction capability? (2) Does BIM promote collaboration, information sharing, coordination, and trust among participants in the prefabricated building supply chain? According to the collected information about the case organization, it can be seen that BIM plays an important role in improving design and assembly capabilities and facilitating collaboration, information sharing, coordination, and trust. As mentioned by the interviewee, \"We often use the parametric function of the BIM software to create standardized \"family\" libraries of various prefabricated components. As the number, types, and specifications of components increase, we gradually build up a standardized prefabricated component library, which improves design efficiency and quality\". In the construction stage, \"using BIM to simulate the real construction environment and construction process, we can predict in advance whether the construction arrangement of the project is balanced, whether the site layout is reasonable, and whether the lifting process is correct\". BIM can also be used to optimize the spatial operation and installation sequence of prefabricated components during lifting. For the role of BIM in collaboration, the interviewee supported that \"the design team and the supply chain can share the BIM model to ensure that all parties involved have a consistent understanding of the project\", \"the designer delivers the drawings to the component manufacturers, who can use the BIM platform to disassemble the components, achieving a closer collaboration and docking with vendors\" and \"construction sites may communicate directly with the design team through BIM to provide feedback on the actual construction situation in order to make timely adjustments to the design and solve construction problems\".