Unfortunately, a few problems were undiscovered during the visual scanning of the building information model and were later corrected on the site. Part of the problem was due to the fact that the BIM process started after the design documents were 60% completed. Ideally, if the process had begun during the early design stage, more problems would have been avoided, including the complex MEP design issues. Of course, this process is not infallible, but the earlier the process is started and the more experience one has in this field, the better probability there is of identifying and resolving potentially expensive problems.
In order to assess the benefits of the BIM process on a project, the costs associated with the early resolution of conflicts had to be determined. An example of an estimated cost analysis is provided below. (Figure 8)