Publication: An Evaluation of Coordination Techniques for Protecting Objects and Territories in Tabletop Groupware

Indirect input techniques allow users to quickly access all parts of tabletop workspaces without the need for physical access; however, indirect techniques restrict the available social cues that are seen on direct touch tables. This reduced awareness results in impoverished coordination; for example, the number of conflicts might increase since users are more likely to interact with objects that another person is planning to use. Conflicts may also arise because indirect techniques reduce territorial behavior, expanding the interaction space of each collaborator. In this paper, we introduce three new tabletop coordination techniques designed to reduce conflicts arising from indirect input, while still allowing users the flexibility of distant object control. Two techniques were designed to promote territoriality and to allow users to protect objects when they work near their personal areas, and the third technique lets users set their protection levels dynamically. We present the results of an evaluation, which shows that people prefer techniques that automatically provide protection for personal territories, and that these techniques also increase territorial behavior.

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Participants

David Pinelle
College of Medicine, University of Saskatchewan
Mutasem Barjawi
University of Saskatchewan
Miguel Nacenta
University of St Andrews, University of Saskatchewan, University of Calgary
Regan Mandryk
University of Saskatchewan

Projects

Interaction Techniques for Digital Tables
Digital tables allow people to interact with computer workspaces that are projected onto tabletops.

Citation

Pinelle, D., Barjawi, M., Nacenta, M.A., Mandryk, R.L. 2009. An Evaluation of Coordination Techniques for Protecting Objects and Territories in Tabletop Groupware. In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2009), Boston, MA, USA. 2129-2138. DOI=10.1145/1518701.1519025.

BibTeX

@inproceedings {148-p2129-pinelle,
author= {David Pinelle and Mutasem Barjawi and Miguel Nacenta and Regan Mandryk},
title= {An Evaluation of Coordination Techniques for Protecting Objects and Territories in Tabletop Groupware},
booktitle= {Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2009)},
year= {2009},
address= {Boston, MA, USA},
pages= {2129-2138}
}