Collaboration on Large Screen Displays

by Lauren and Meg

1.       Number of users

o        Minimum two users

o        Maximum?

o        Proportional to display size (only for synchronous, collocated communication)

2.       User Position

o        Position with respect to peers

o        Position with respect to display

3.       Input

o        Multiple Input

1.       Asynchronous – taking turns

§         Shared physical device

§         Multiple physical devices

2.       Synchronous - simultaneous interaction

§         Control ranking (avoid conflicts)

§         Concurrent

3.       Ownership of physical device

o        Level of Interaction

1.       Direct (touch screen)

2.       Indirect (gesture)

4.       Communication

o        Temporal

1.       Asynchronous

2.       Synchronous

o        Spatial

1.       Collocated

2.       Distal

5.       User Role

o        Presenter

o        Audience

o        Peer

o        Proportional to distance from display

6.       Application Interface

o        Shared space

o        Separate spaces

7.       Awareness

8.       Privacy/Security