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Modality preference – Learning from users

An important constituent for mobile and ubiquitous computing systems 
is the interface and the associated human-computer interactions. Mobile 
contexts have different design requirements to stationary desktop contexts. Although 
previous work has concentrated on stationary domains and unimodal 
systems, and more recently on multimodal systems, user evaluation for the use 
of different modality combinations is limited. In this paper, we outline the 
qualitative results from a recent usability study. These results form a general 
guideline in determining which base modalities and modality combinations to 
use when designing for mobile and ubiquitous environments.