From the Editor
Embracing a Modeling Perspective
In this article, the PMJ editor defines "model" and develops a categorization, classification, and taxonomy of models. Furthermore, the reader is encouraged to focus on "modeling to understand that is to do ingeniously!" In addition, the article includes assumptions on modeling. The first is that management of projects implies a systemic vision. The second assumption is that acting in complex, uncertain, and ambiguous management situations involves "modeling to understand..." (Le Moigne, 2003). A project manager should develop his or her own set of models for analysis.