Cyberguide: prototyping context-aware mobile applications
Conference Companion on Human Factors in Computing Systems
Developing a context-aware electronic tourist guide: some issues and experiences
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Staging and evaluating public performances as an approach to CVE research
Proceedings of the 4th international conference on Collaborative virtual environments
Creating Experiences with Wearable Computing
IEEE Pervasive Computing
Lessons from the lighthouse: collaboration in a shared mixed reality system
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The Electronic Guidebook: A Study of User Experiences Using Mobile Web Content in a Museum Setting
WMTE '02 Proceedings IEEE International Workshop on Wireless and Mobile Technologies in Education
Low Cost Indoor Positioning System
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Topiary: a tool for prototyping location-enhanced applications
Proceedings of the 17th annual ACM symposium on User interface software and technology
Magic moments in situated mediascapes
Proceedings of the 2005 ACM SIGCHI International Conference on Advances in computer entertainment technology
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We describe an examination of various physical and human factors which influence the effectiveness of location-based applications. By varying both the target location size and position system accuracy, and hence the ease of use of an application, we are able to identify physical constraints which apply as well as quantifying performance and evaluating human factors. A movement analysis is proposed which allows us to formulate a set of equations that relate the time to find the target to the target location size, distance and positioning system accuracy. We validate our work using a game based application, digital hopscotch, in which the location size and the accuracy of the positioning system are varied. A further set of tests is performed outdoors using a GPS-based application. We show that the results from these experiments concur with the results from our equations. This work may be usefully embedded in software packages that allow designers to build location-based applications.