Undo & Redo for Large Interactive Surfaces

In this video we explore the problem of common undo & redo on very large interactive whiteboards. When multiple users are simultaneously sharing a workspace, it is not always clear what should happen when a user invokes an undo action. We explored different user interfaces for undo/redo for co-located collaborative workspaces, such as large interactive whiteboards. A preliminary study revealed that users expect neither a global nor personal undo, but rather a regional undo. We propose and evaluate three automatic regional undo/redo techniques (clustering, workspace, field of view) designed for a large interactive whiteboard. The results of the evaluation showed that an undo technique based on users' field of view was most preferred, while the content-based clustering technique produced most errors.

For more info have go to our project website: http://mi-lab.org/projects/undo-on-large-interactive-surfaces

Category:

Science & Technology

Tags:

• Research;
• HCI;
• Undo;
• Interactivity;
• CHI
• 2012;
• Large
• Screen;
• Interactive
• Whiteboard;
• Multi-User;
• Anoto;