The prototype can be a machine or a programme done for demonstrative objectives. It allows the experimentation of the new products before the launch o the market. Problems or deficiencies can therefore be discovered and correct. When the prototype is sufficiently trimmed and it is functional and producible, the product has all the qualifications to be produced.

Skema realized prototypes for the offshore and also for the railway turn-out. Today the company continues to produce prototypes for competition boats.