The active badge location system
ACM Transactions on Information Systems (TOIS)
Evaluating video as a technology for informal communication
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Portholes: supporting awareness in a distributed work group
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Awareness and coordination in shared workspaces
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
The Zephyr Help Instance: promoting ongoing activity in a CSCW system
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Intelligent, networked devices are increasingly common, and most of these devices are capable of reporting presence information about users or sets of users. One serious limitation is that most existing presence awareness systems are unable handle multiple presence sources at once, nor are they able to handle the situation where a user is also enacting multiple roles. This work looks at some of the possible problems with multiple sources, such as when a single device could report about multiple people, or devices have conflicting data.