The design model integrates several elements, instead of providing the designer with one important paradigm; thus it does not simply state ‘surface’, or ‘fold’, but it instrumentalizes possible concepts such as these in a way to incorporate the real ingredients of a built work of architecture. The design model is prototypical, can evolve and can be implemented in various situations and projects. The design model condenses complexity; everything has to be already in it: routing, construction, budget, program, as well as its own driving principle, a direction, something that the designer points at.