User interface design
The active badge location system
ACM Transactions on Information Systems (TOIS)
Rapid prototyping of mobile context-aware applications: the Cyberguide case study
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
Software Engineering
'Caches in the Air': Disseminating Tourist Information in the Guide System
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
Context-Aware Computing Applications
WMCSA '94 Proceedings of the 1994 First Workshop on Mobile Computing Systems and Applications
ICCS '02 Proceedings of the International Conference on Computational Science-Part II
Exploiting Location-Based Composite Devices to Support and Facilitate Situated Ubiquitous Computing
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
An Access Control Architecture for Microcellular Wireless IPv6 Networks
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
Secure Data Flow in a Calculus for Context Awareness
Concurrency, Graphs and Models
Harness mobility: managing the off-task property
DESRIST'10 Proceedings of the 5th international conference on Global Perspectives on Design Science Research
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This paper considers the role of network connectivity in supporting context-sensitive applications. A range of context-sensitive applications are analysed with respect to connectivity. Following this analysis a design space is constructed which enables the positioning of context-sensitive applications depending on their reliance on network connectivity and their reliance on local storage. Further consideration of the role of connectivity is achieved through a study of the GUIDE system which has been developed to provide context-sensitive information to visitors to the city of Lancaster. The current GUIDE system utilises a cell-based wireless network infrastructure to provide both location information and dynamic information to mobile GUIDE units. However, coverage throughout the city is not complete and this raises a number of design implications, including how to maintain a visitor's trust in the system when outside of cell coverage.