From a structural framework perspective, projects can be organized according to a number of different models. The so-called stage model is one of the more established of these models. Which of the following claims does NOT describe (one aspect of) this model: The stage model differs from the waterfall model by the former not embracing a planned process with clearly secluded phases. The stage model is a more realistic and practical variant of the generic rational decision model compared to the waterfall model. The stage model is different from the so-called agile project model, among other things, due to the fact that according to the former it is important to plan the project work. The stage model can be seen as a variant of the waterfall model