Designing for Ubiquitous Computing: A Case Study in Context Sensing
Dey, Anind K.
Orr, Robert J.
Abowd, Gregory D.
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This paper reports ongoing experience with the design and everyday use of an electronic context-enabled in/out board. We designed this application as part of the development of a context toolkit and it proved a fruitful test-bed for investigating issues of context sensor fusion. We describe the first version of the application that used a single context sensor and explain some usability problems it raised. We analyze the limitations of available context sensors and conclude that the usability problems cannot be overcome using a single sensor. We suggest solutions relying on the use of multiple context sensors and sensor fusion.