ABSTRACT
Good planners separate what is known from what is unknown and then they deal intentionally with the most important unknowns throughout the planning process. The uncertainties are not all equally important. Part of the planners’ job is to identify and then address those sources of uncertainty that could signi—cantly affect plan outcomes. Furthermore, planners must convey the signi—cance of these uncertainties to decision makers. These are the uncertainties that can affect decision making.
