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Auflistung nach Schlagwort "touch interaction"

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  • muc: langbeitrag (vorträge)
    Simple Nonvisual Interaction on Touch Tablets
    (Mensch & Computer 2013: Interaktive Vielfalt, 2013) Rümelin, Sonja; Kroner, Valerie; Butz, Andreas
    In this paper, we compare different designs for a touch tablet interface to support a simple, repeated task with high visual load in itself. A user-centered approach was applied throughout the development. Expert users were involved in the analysis, design and evaluation of an application for time tracking in a production planning environment. In a lab user study, touch gestures and multi-touch input outperformed screen buttons in terms of visual demand, while error rate and efficiency remained stable. A subsequent expert evaluation in the wild confirmed these results. This shows that for repeated tasks with high visual load, more complex touch interaction may be preferred than simpler but widespread techniques.
  • Zeitschriftenartikel
    Time related changes of affective dimensions and distinct emotions in the interaction with a tablet PC
    (i-com: Vol. 21, No. 3, 2022) Brandenburg, Stefan; Spang, Robert
    Examining peoples’ affect and emotions over time and their effects on peoples’ behavior are ongoing endeavors in human-computer-interaction (HCI) research. This paper reports an experiment in which participants watched either positive or negative film clips on a tablet PC to enter a positive or negative affective state. Successively, they accomplished four basic system interaction tasks like changing fonts of an app on the same device. Results show that, in line with previous studies, peoples’ general valence ratings quickly reverted to neutral when starting the task accomplishment. At the level of distinct positive emotions, participants’ ratings of hope, joy, and serenity decreased after watching negative film clips. Moreover, amusement, love, and serenity decreased during the interaction with the tablet PC. Amongst the negative emotions, only ratings of sadness increased after watching negative film clips and decreased again after the interaction. Also, participants in the positive film group were slower in executing one of the basic tasks than participants in the negative film group. The findings suggest that only few emotions may be causal for peoples’ ratings of general affect. Results also indicate that negative emotions may help people executing standard tasks, in contrast to positive emotions. Implications for HCI design and research are discussed.