The ontology of architectural design is concerned in the definition of the design action in a positive sense: as a specific system of inscriptions, exchange and production oriented to the realization of some (material) effects in the world.

What is an architectural design? To whom and what it owes its power? Which facts it has to consider? What values it could be embody? Instead of looking at architectural theories, to their underlying systems of values, and to their specific normativity, the ontology of architectural design focuses on documents, on the forms of productions, and on their actions (and effects) in the social world.

As a positive knowledge, the design action can be defined as a specific set of competencies and powers, between techné and politics, bureaucratic and symbolic dimensions, forecast and narration.