Durante el proceso de diseño, el interiorista toma cientos de decisiones desde la primera idea hasta el último dibujo. Entonces, existe la necesidad de un principio de control: un concepto que gobierne cada detalle. Sin esto, solo se pueden tomar decisiones 'ad hoc', por lo que el resultado final no será armonioso.

When we see a nice house, we’re not going to tell you how good the concept was, just seeing how simple the solutions are. If this control principle is missing, we will not see the house as nice.

The concept is eventually the style itself. For example, for Gothic, it is light, for historicism is to discover and improve the architecture of old ages.

But we don’t have to go that far: in fact, we need a concept when designing our lunch or our daily outfit. There is no life without concept.