Location-based ubiquitous computing systems are entering mainstream society and becoming familiar parts of everyday life. However, the settings in which they are deployed are alre...
This paper presents two empirical usability studies based on techniques from Human-Computer Interaction HCI and software engineering, which were used to elicitate requirements fo...
This paper describes a system that allows users who obtain a “wearable ID key” to personalize dynamically ubiquitous computers by simply touching them. We call the concept of ...
Protocols represent the allowed interactions among communicating components. Protocols are essential in electronic commerce to constrain the behaviors of autonomous entities. Trad...
Rapid technological change requires that system designers explore potential design spaces widely before committing to a local design space in which to evolve a problem solution. W...