BIM is simply a collision test system for various professions. Under the computer data simulation, it is necessary to solve whether there is any conflict between the official website of major equipment and whether there is any overlap in the construction operation system, so as to avoid possible problems in the future as soon as possible. Assembled buildings are like building blocks. All components are made and shaped in advance, and then combined and spliced during construction.

Both of them are absolutely good things to avoid engineering and work mistakes and reduce future property and time losses, but the former has been difficult to be widely promoted for more than ten years because it wants to break people's original work progress and methods. The latter is difficult to be used in small-scale projects because of its high cost of mold opening. Therefore, everything in the world is difficult to be perfect, and advantages and disadvantages are always there.