The primary role of BIM solution design software during the early design phase is to convert concept-based models from the owner’s design tasks into geometric models. These models serve as a foundation for communication and program analysis between the owner and the designer. BIM solution design software enables designers to verify whether the design aligns with the project requirements specified by the owner. The output from this software can then be transferred to BIM core modeling software for further design development and continued validation against the owner’s criteria. Currently, the main BIM solution software includes Onuma Planning System and Affinity, both of which integrate with core BIM modeling software (see Figure 1).
During the initial design stage, using shape modeling software is often more convenient and efficient than working directly with BIM core modeling software, especially for exploring forms, volumes, or modeling complex structures. The data created by shape modeling software can be imported into BIM core modeling software as preliminary information via file conversion. Popular geometric modeling tools include SketchUp, Rhino, and FormZ. Their integration with BIM core modeling software is illustrated in Figure 2.
A key advantage of 3D design over traditional BIM design is the ability to visualize the project in three dimensions, which can reveal clashes and conflicts not apparent in 2D views. Different specialists use various BIM core modeling software to develop their own professional BIM models. These individual models are then integrated into a unified environment to complete the overall project design, analysis, and simulation. For large and complex construction projects, the volume of project information is often too vast to manage within a single document. Therefore, separate models must be integrated carefully to maintain consistency and coordination across the entire project.
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