David Kirsh studies is of interest with regard to my idea of analyzing how space is used in collaboraitv eproblem solving:

How do humans reduce cognitive complexity? How do we maintain control over the structure of our workplaces? How do we encode information in arrangements? How do we lay down cues, constraints and markers to simplify activity? These are a few of the problems I would like to understand.

To explore these issues scientifically is a challenge which my students and I are trying to meet by videotaping people interacting in naturalistic settings, by running controlled experiments in the laboratory, and by building computer models of expertise to explore the strengths and weaknesses of different approaches.