The decision-making process and tool is intended to help recognize the issues to consider in making early decisions on modularization and later decisions on preassembly, prefabrication, and offsite construction. It aims at facilitating a systematic thought-out process by providing a conceptual framework for decision-making. Although subjective in nature, the tool is designed to assist in making good, judgment-based decisions. (RS171-1, p. 18)
The Decision-Timing Map (Figure 6) and Decision-Making Flow Chart (Figure 7) were designed to identify recommended stages in the project life cycle for using the PPMOF tools.