Abstract. This paper defends an augmented cognitively oriented "genericdesign hypothesis": There are both significant similarities between the design activities implemented in different situations and crucial differences between these and other cognitive activities; yet, characteristics of a design situation (i.e., related to the designers, the artefact, and other task variables influencing these two) introduce specificities in the corresponding design activities and cognitive structures that are used. We thus combine the generic-design hypothesis with that of different "forms" of designing. In this paper, outlining a number of directions that need further elaboration, we propose a series of candidate dimensions underlying such forms of design. Keywords. analysis of design processes, design cognition, design theory and research, generic design, psychological theory building in the design field inria-00118256,version1-4Dec2006 Author manuscript, published in "Wo...