ViZCom: Viewing, zooming and commenting through mobile devices

In tabletop-supported collaborative environments, direct viewing or accessing to all parts of the screen is not possible in many cases. This could affect the performance of team members in executing the common collaborative tasks. Targeting this concern, we developed the ViZCom (Viewing, Zooming and Commenting) framework that enables the team members to view the tabletop screen on their mobile devices. It also facilitates them to zoom the screen view on their mobile devices through different zooming options. Further, it provides the facility to write comments or highlight screen parts on their mobile devices, which are then scaled proportionally and shown on the actual tabletop. Overall, the framework extends the collaborative environment by adding these mobile devices in order to provide more spatial flexibility.