... summary, the waterfall model is easy to understand and simple to manage. But the advantages of the model begin to break down once the complexity of the project increases. The Spiral Model An ... that is, the generation of a model from code. This could be a help with synchronising - at the end of iteration 1, regenerate the model from the code, and then work from this new model for ... together. Sometimes, the model is used to group related Use Cases together. Within a UML package, the names of the elements must be unique. So, for example, the name of every class within the...