## 6 Results and Future Studies  
### Results  
This study discusses the feasibility of the application of the BIM models of historic buildings in restoration and completes two tasks: building the Unity integration platform and developing the iData+ plug-in application. As the interactive function of the BIM models of historic buildings in the Revit platform is expanded, the visual application of historic building restoration information is strengthened through the Unity integration platform, which provides an intuitive operating interface that lowers the barriers to using the Revit BIM model.  
The iData+ plug-in application developed in this study can overlay and update restoration information, and the generated restoration process information can be exported in the Excel format, which can be edited; thus, the information can provide added value through word processing software. Meanwhile, the cloud service framework setting is also completed for bi-directional conversion and real-time updating between Revit and Unity platforms. Information transmission between Revit and Unity is connected by the cloud end service architecture to upload the latest restoration information and simplify the complexity of the workflow.  
As historic building components are very complex, and the model and information are not easily read, the \"visual information list\" option in the Unity integration platform can be accessed at the historic building restoration site for information comparison with the actual components. In addition to presenting the information and model in an interactive visual manner, users can use the \"interactive information list\" option to change and increase the restoration suggestions offered in the restoration information of the components to promote the application of the restoration information. Moreover, the \"interactive automation\" option is set, component disassembly steps and descriptions are provided, and disassembly automation is animated to facilitate communication and discussion between the design end and the construction end of the component restoration, in order to ensure that all parties have a correct understanding of the model information, which will improve the overall flow and cooperation.  
This study used Unity as the integration platform to develop BIM model functions of historic buildings. When applied in the restoration design of historic buildings, visual information integration helps improve the interactive experience and follow-up management and increases the feasibility of preserving cultural heritage. The following are the three results and contributions of this study:Provide a visual environment for interaction with models and information: through the development of the Unity integration platform, strengthen the possibility of future applications of historic building restoration designs and provide an interactive platform to assist the restoration design process and communication.
* Real-time automatic bi-directional information transmission: the iData+API plug-in application built in this study can upload revised information and carry out bi-directional overlaying and updating, in order to enrich historic building restoration information and simplify the transmission of manual information.
* Maintain the sustainable application of model information: through the information collection and programming integration process, the transmission and integration of models and information between different platforms can be achieved, and the information transmission of a cloud service framework can make it easier to import and apply the information model of historic buildings.