In our society everything revolves around the notion of VALUE. In engineering the Value is the judgment made on the product, based on user expectations and motivations, expressed by a dimension that increases or remains at least equal when the satisfaction of user needs increases and/or the product related expenses decrease. This paper presents: 1-a concrete example of modular design, using the Value Analysis approach in a concrete case related to the machinery for crushing materials, 2-a modern and original method for optimizing the selection of a manufacturing process for a part, for...