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Usability evaluation of systems for mobile computers and devices is an emerging area of research. This paper presents and evaluates six techniques for evaluating the usability of mobile computer systems in laboratory settings. The purpose of these techniques is to facilitate systematic data collection in a controlled environment and support the(More)
Intimacy is a crucial element of domestic life, and many interactive technologies designed for other purposes have been appropriated for use within intimate relationships. However, there is a deficit in current understandings of how technologies are used within intimate relationships, and how to design technologies to support intimate acts. In this paper we(More)
When designing a usability evaluation, choices must be made regarding methods and techniques for data collection and analysis. Mobile guides raise new concerns and challenges to established usability evaluation approaches. Not only are they typically closely related to objects and activities in the user's immediate surroundings, they are often used while(More)
When designing a usability evaluation, key decisions must be made regarding methods and techniques for data collection and analysis. Although there is a strong body of research within human-computer interaction regarding the appropriate choices of data collection methods and techniques much less research has been conducted examining and comparing methods(More)
People in close relationships, who are separated by distance, often have difficulty expressing intimacy adequately. Based on the results of an ethnographic study with couples, a prototype was developed to test the feasibility of technology in the domain of intimacy. Hug Over a Distance is an air-inflatable vest that can be remotely triggered to create a(More)
Intimacy is a crucial element of domestic life that has received insufficient attention from Human-Computer Interaction (HCI) researchers despite their rapidly growing interest in the design of interactive technologies for domestic use. Intimate acts differ from other activities, and there are unexplored opportunities to develop interactive technologies to(More)
We report from a longitudinal laboratory-based usability evaluation of a health care information system. A usability evaluation was conducted with novice users when an electronic patient record system was being deployed in a large hospital. After the nurses had used the system in their daily work for 15 months, we repeated the evaluation. Our aim was to(More)
As urban environments become increasingly hybridized, mixing the social, built, and digital in interesting ways, designing for computing in the city presents new challenges—how do we understand such hybridization, and then respond to it as designers? Here we synthesize earlier work in human-computer interaction, sociology and architecture in(More)
Grandparents may feel revitalized when a grandchild joins the family, but the physical separation that often exists between grandparents and grandchildren can make it difficult to develop a close relationship. Current communication technologies, such as the phone, are inadequate for developing close relationships with children. This paper presents the(More)