As services embedded into public spaces become increasingly transparent, one peripheral aspect of use continues to demand explicit user attention: payment. UbiPay is a system that...
In this paper we present a software framework which supports the construction and evaluation of mixedfidelity prototypes for mobile devices. The framework is available for desktop...
The differences between Augmented Reality (AR) systems and computer display based systems create a need for a different approach to the design and development of AR systems. To un...
Text passwords are the primary authentication method used for most online services. Many online users select weak passwords. Regrettably, most proposed methods of strengthening pa...
User Interfaces have been around as long as computers have existed, even well before the field of HumanComputer Interaction was established. Over the years, some papers on the his...