The story of technology tells us how engineers and architects have spread their work through a long process that after an idealistic period at modernistic times, has to come to a reunion. From second half of twentieth century many are the examples of fruitful relation that drives us to underline the collective aspect of the construction that can never again be conceived as individual. Other profiles as engineers close to design and architects to engineer help to erase this border than a visionary as Le Corbusier took advance in bis famous drawing.