In class, we were asked to provide graphical descriptions of both the Waterfall Model and Prototype Model and explain them clearly upon our blogs. Below, both an image and description of the Waterfall Model is provided.
The Waterfall Model is seen as an approach to tackling the stages of problem solving. Within this method, each stage is completed before work on a new section commences. In other words, work on a new stage is begun until the previos has been completed.
One advantage of this method is that if problems occur, developers can back track 'up' the waterfall to each stage!