User Isolation in Multi-user Multi-touch Devices Using OS-Level Virtualization

Providing multi-user isolation is one of the most important issues in computing environments with multi-touch displays because multi-touch devices such as tabletops allow multiple users to interact simultaneously. However, existing window manager, which is commonly used to control the placement and appearance of windows, never provides isolation among the users. In this paper, we present a method that provides isolation in multi-touch multi-user computing systems using OS-level virtualization and show the effectiveness of the method with serveral experimental results. Our experimental results show that OS-level virtualization sucessfully provides both multi-user interaction and isolation in multi-touch devices.