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...
Menus are a primary control in current interfaces, but there has been relatively little theoretical work to model their performance. We propose a model of menu performance that go...
Information shown on a tabletop display can appear distorted when viewed by a seated user. Even worse, the impact of this distortion is different depending on the location of the ...
Daniel Wigdor, Chia Shen, Clifton Forlines, Ravin ...
For more than a decade, the number of usability test participants has been a major theme of debate among usability practitioners and researchers keen to improve usability test per...
We performed an empirical study exploring people's interactions with an embodied conversational agent (ECA) while performing two tasks. Conditions varied with respect to 1) w...