The process of production of a product depends on the size, technical characteristics (material, surface, colour, …) and number of pieces. In producing the prototype / model / first parts we must always start from the intention, and in what way the prototype will serve its purpose (design wise, dimensionally suitable, for testing a product, for testing the market …)? From this information, we are able to choose the most suitable technology or combination of those. No technology is the best. All are good, each serving its own purpose.