Just talk to me: a field study of expertise location
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Online Communities: Designing Usability and Supporting Socialbilty
Online Communities: Designing Usability and Supporting Socialbilty
Sharing Expertise: Beyond Knowledge Management
Sharing Expertise: Beyond Knowledge Management
Revisiting the visit:: understanding how technology can shape the museum visit
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Activity-Centered Design: An Ecological Approach to Designing Smart Tools and Usable Systems
Activity-Centered Design: An Ecological Approach to Designing Smart Tools and Usable Systems
Studying cooperation and conflict between authors with history flow visualizations
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Territoriality in collaborative tabletop workspaces
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
Imprints of place: creative expressions of the museum experience
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The role of psychological ownership and ownership markers in collaborative working environment
Proceedings of the 8th international conference on Multimodal interfaces
Community, consensus, coercion, control: cs*w or how policy mediates mass participation
Proceedings of the 2007 international ACM conference on Supporting group work
ArtLinks: fostering social awareness and reflection in museums
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Social tagging roles: publishers, evangelists, leaders
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Making sense of strangers' expertise from signals in digital artifacts
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
What's mine is mine: territoriality in collaborative authoring
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Coordination in collective intelligence: the role of team structure and task interdependence
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A tag in the hand: supporting semantic, social, and spatial navigation in museums
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Yours, mine and (not) ours: social influences on group information repositories
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
User perceptions of the role and value of tags
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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When experts participate in collaborative systems, tension may arise between them and novice contributors. In particular, when experts perceive novices as a bother or a threat, the experts may express territoriality: behaviors communicating ownership of a target of interest. In this paper, we describe the results of a user study of a mobile social tagging system deployed within a museum gallery to a group of novices and experts collaboratively tagging part of the collection. We observed that experts express greater feelings of ownership towards their contributions to the system and the museum in general. Experts were more likely than novices to participate at higher rates and to negatively evaluate contributions made by others. We suggest a number of design strategies to balance experts' expressions of territoriality so as to motivate their participation while discouraging exclusionary behaviors.