1. The construction model can be categorized into three types: the detailed design model, the construction process model, and the completion model.
2. The project construction model should be developed based on the specific requirements of BIM-related disciplines and tasks. Its elements and level of detail must satisfy the needs of various activities, including detailed design, construction sequencing, and final acceptance.
3. Construction models may be created either as a unified, integrated model or separately by discipline or task through coordinated division of labor. All project construction models should use a consistent full-scale coordinate system, common origin point, and standardized measurement units.
4. Throughout model transformation and data exchange processes, the integrity of the model must be preserved, ensuring no loss or distortion of information occurs.
5. Model elements should contain geometric data such as dimensions and positioning, along with detailed attributes including names, specifications, materials, manufacturers, and functional or performance technical parameters. Additionally, non-geometric information such as system type, connection methods, installation locations, and construction techniques should also be included.
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