IBM computer usability satisfaction questionnaires: psychometric evaluation and instructions for use
International Journal of Human-Computer Interaction
How people use orientation on tables: comprehension, coordination and communication
GROUP '03 Proceedings of the 2003 international ACM SIGGROUP conference on Supporting group work
DiamondSpin: an extensible toolkit for around-the-table interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
Territoriality in collaborative tabletop workspaces
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
Fluid integration of rotation and translation
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Rotation and Translation Mechanisms for Tabletop Interaction
TABLETOP '06 Proceedings of the First IEEE International Workshop on Horizontal Interactive Human-Computer Systems
Collaborative coupling over tabletop displays
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
TNT: improved rotation and translation on digital tables
GI '06 Proceedings of Graphics Interface 2006
Detecting and leveraging finger orientation for interaction with direct-touch surfaces
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Semiautomatic and user-centered orientation of digital artifacts on multi-touch tabletops
ICEC'12 Proceedings of the 11th international conference on Entertainment Computing
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Tabletops are commonly used for collaboration but would benefit from features that help orient objects to individual users disposed around the display. We propose an approach of automatic orientation based on fingers and hand detection as a proxy to determine the position of the user. To contribute to the discussion of the relevance of automatic rotation, we present a comparison study of pairs of participants engaged in both loosely and tightly coupled tasks. We collected performance measures, questionnaires and analyze interactions from video recordings. The results show that automatic rotation is more suitable when the collaboration is loosely coupled. Conversely, in tightly coupled tasks performance are worse and user ratings low when automatic rotations are enabled. We conclude that features such as automatic orientation on tabletop are important and promising but that they need to be critically assessed with respect to their effects on collaboration in both tightly and loosely coupled tasks.