The prototype is the representation of a Del Bello product or part of one
which, although at an early stage, can be used for evaluation and testing purposes.
Only when the concept has been able to completely express the Del Bello identity,
it is promoted to this step.
In devising the prototype, the team is concentrated on the aspects for which there are many possible solutions, among which pros and cons are balancing each other, or on aspects for which the risks resulting from bad planning could be high.