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Staffi ng for BIM

As you rethink the process of design and documentation, one of the fundamental changes you will need to address is staffi ng. A common misconception of project management when teams
are fi rst moving from CAD to BIM is that staffi ng the project will be the same in both workfl ows. This couldn’t be further from the truth because when the workfl ow changes, staffi ng allocations, the time to complete tasks, and the percentage of work by phase are all affected as a result of the changes.
Several years ago, Patrick MacLeamy, FAIA, set out to illustrate the fundamental benefi t to more informed design that happened to be a byproduct of building information modeling. The graph, which has come to be known as the MacLeamy Curve (Figure 1.11), is not intended to
imply a simple shift in labor earlier in the design process; rather, it stresses the importance of being able to make higher-value decisions before it becomes too diffi cult to make changes to a
design. The x-axis of the chart represents project phases from conceptual design through occupancy, whereas the y-axis represents the amount of effort in each phase.

Staffi ng for BIM 1
Figure 1.11
Staffi ng in BIM

Another way to think about this shift is as a diagram of leverage, as shown in Figure 1.12.
Implementing BIM in earlier phases of a project gives you the greatest opportunity to add value
to the overall compilation of building information delivered for a facility. When you begin BIM
earlier, you may need to increase staff to build a better model or to perform energy analysis or
preliminary quantity takeoffs; however, using a better tool like Revit software will not necessarily
translate to the same labor used in a CAD-based project. You will fi nd how this affects your
team effort after a few BIM projects.

Staffi ng for BIM 2

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