Some computer science issues in ubiquitous computing
Communications of the ACM - Special issue on computer augmented environments: back to the real world
Interfacing with the invisible computer
Proceedings of the second Nordic conference on Human-computer interaction
Interacting with Computers
Projected cognition: capturing intent in descriptions of complex interaction
Proceedings of the 7th ACM conference on Designing interactive systems
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In this paper we look at four different interpretations of the term 'Ubiquitous Computing' - many computers; people using them much of the time; embedded computers, and 'invisible' systems - and consider how the two more specialist interpretations are being undermined by the other two. We explain how the increased manifestation of computers in our environment alters the ways in which we should consider how to design ubiquitous systems. There are some specific implications for design of interfaces to artefacts containing embedded computers and these are discussed in the context of recent work on Projected Cognition.