“Approaches” for implementing a principle are, essentially, ways of doing things or mechanisms for turning abstract principles and concepts into reality. The literature shows various approaches aimed at reduce variability, but very often these approaches are not strictly focused on variability. In this context, this research adopted the list of heuristic approaches proposed by Koskela (1992), from the VTT Building Technology, Finland, since it presents a more strict relationship with the objective of reduce variability. Koskela’s (1992) heuristic implementation approaches include: