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  • Harris Sun thinks this is interesting:

In a 2D type of project, three things primarily stand out as inefficient and costly in regard to the time it takes to accomplish them:

  • Overlay and document coordination review

  • Changes in information

  • Unlinked project administration tools to documentation

The first is overlay and document coordination review. In a BIM project, a significant advantage to using BIM as an overlay tool is that light tables and even referenced CAD data goes by the wayside. By using real X,Y,Z coordination points, the models can be viewed in all dimensions, not just two. As shown in the tutorials in

Note

Pitfalls and drawbacks of Existing construction process