I would like to show how people use spatial features (contained in a kind of team spatial mental model or individual spatial mental model which needs to be grounded) to solve problem together and coordinate. I'd like to find which collaborative processes are involved and if spatial features like location is used in those processes. For instance, which spatial feature support which collaborative process. I imagin a model in which a group of individuals (who all have their own spatial mental model) form a team spatial mental model.

I previously talked about the Joint Problem Space ("a shared knowledge structure that supports problem solving activity by integrating (a) goals (b) descriptions of the current problem state, (c) awareness of available problem solving actions, and (d) associations that relate goals, features of the current problem state, and available actions.").

Maybe it would be nice to study how the joint problem space AND the real space overlap, if there are analogies between the team/individual spatial model and this joint problem space. As in the "analogy model" (with deep and surface feature), there would be some correspondence.

Concerning the grounding of the spatial mental model, I envision three situations : - mutual knowledge of the environment: the participants all know the real space they are working in. - non mutual knowledge : the participants all do not know the real space they are working in. - not sure of the mutual knowledge :the participants do not know if their partners know the real space they are working in.