Real time groupware as a distributed system: concurrency control and its effect on the interface
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Policies and roles in collaborative applications
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
Floor control for multimedia conferencing and collaboration
Multimedia Systems
Supporting flexible roles in a shared space
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots
Moving out of the meeting room: exploring support for mobile meetings
Proceedings of the Sixth European conference on Computer supported cooperative work
Dynamo: a public interactive surface supporting the cooperative sharing and exchange of media
Proceedings of the 16th annual ACM symposium on User interface software and technology
Beyond "social protocols": multi-user coordination policies for co-located groupware
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
System guidelines for co-located, collaborative work on a tabletop display
ECSCW'03 Proceedings of the eighth conference on European Conference on Computer Supported Cooperative Work
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Collaborative workspaces are in dire need of elegant floor control policies, resolving and preventing conflicts without interrupting the dynamic workflow. Our approach employs the user's roles and focus to extend existing solutions. Roles define a user's responsibilities and privileges during a particular activity; tracking the users' focus provides a means of improving mutual awareness within a multi-user setting. Furthermore, in combination with document properties such as content type and sensitivity, roles make up an effective access control system. We apply the approach to a co-located group of users, interacting simultaneously on a collaborative shared display, which results in graceful (e.g. correct in a socio-organizational context) conflict handling and access to shared data.