Bookmarklets | MOVABLE TYPE yet another definition of space that proposes different levels :

- 1st level : the environment as a material construct, a concrete, geometric object, with artifacts and boundaries. - 2nd level : the perceived environment : a psychological construct as perceived by individuals. - 3nd level : the place in which activities are carried out.

Level 2 and 3 are intricately related in the sense that they are not 'objective' and have qualitative features that foster specific behavior.