In this paper we describe a user-centered approach to designing and evaluating a socially interactive mobile game for the elderly. The objective of the game is to encourage the elderly to socially engage amongst themselves and to make the time that they spend in the community center more enjoyable. The design of the game, known as Walk 2 Win was done for and with the elderly. Two levels of the ...

This paper investigates the possibility that ultra-compact dwarf (UCD) galaxies in the Fornax cluster are formed by the threshing of nucleated, early-type dwarf galaxies (hereafter dwarf galaxies). Similar to the results of Côté et al. for the Virgo cluster, we show that the Fornax cluster observations are consistent with a single population in which all dwarfs are nucleated, with a ratio of nu...

Usability capability is a characteristic of a development organization that predicts the level of usability the development projects are capable of achieving. Our experiments with the existing usability capability models indicate that current process assessment methods do not discover all relevant problems that might impede effective user-centered design (UCD) in development organizations. We p...

This paper studies rank aggregation by using ontology-based user preferences in the context of Web search. We introduce a set of techniques to combine the respective rank lists produced by different attributes of user preferences. Furthermore, the learned user preferences are structured as a taxonomic hierarchy (a simple ontology). We use the learned ontology to store the attributes such as, th...

1 Department of Anthropology, University of Aberdeen, Aberdeen AB24 3QY, Scotland, UK [email protected] 2 Lancaster University Management School, Lancaster University, Lancaster, LA1 4YX, UK [email protected] 3 University College Dublin, UCD College of Business, Belfield, Dublin 4, Ireland [email protected], [email protected] 4 MIT Sloan School of Management, 100 Main Street...

This paper describes the use of skill atoms as a design lens for gameful design that focuses the optimal structuring of challenges inherent in a user’s goal pursuit. Author

Like other user-centered approaches, scenario-based design changes the focus of design work from defining system operations (i.e., functional specification) to describing how people will use a system to accomplish work tasks and other activities. However, unlike approaches that consider human behavior and experience through formal analysis and modeling of well-specified tasks, scenario-based de...