Q-PIT : representing the user
ð representing the user : a coloured DIVE "blockie" embodiment
ð the presence of users in the space
ð the position of users in the space
ð the orientation of users in the space : indicates the objects of interest to the user(s)
ð the activity of users in the space : whenever a user query selects an object, the object obtains a user- coloured grid.