Utilisation collaborative d'un mur d'écran en contexte critique. (Collaboration around wall displays in command and control contexts)

In this thesis, I study the benefits of collaboration in front of Ultra-High ResolutionInteractive Wall Displays (UHRWD). I focus on the specific collaborative context of control rooms.Visits of control rooms and interviews with operators show that different degrees of collaboration arerequired in function of the situation. I believe that a UHRIWD could be beneficial in situations whenclose collaboration is needed. I first show that wall display encourages close collaboration comparedto multiple separate displays. Then I show that the interaction techniques can also influence thedegree of collaboration, for instance, a technique with a large visual footprint also encourages a closecollaboration. I apply this in the design of technique to visualize road traffic forecast on a wall displayfor road traffic control centres. Finally, I propose techniques to help the transition between thedifferent setups of a control room: the workstations and the wall display.