Assessing lag perception in electronic sketching

Authors:
Ugo Braga Sangiorgi;Vivian Genaro Motti;François Beuvens;Jean Vanderdonckt
Affiliations:
Université catholique de Louvain, Louvain-la-Neuve (Belgium);Université catholique de Louvain, Louvain-la-Neuve (Belgium);Université catholique de Louvain, Louvain-la-Neuve (Belgium);Université catholique de Louvain, Louvain-la-Neuve (Belgium)
Venue:
Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design
Year:
2012

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Abstract

Electronic sketching has received a recurrence of interest over the years and again nowadays within the mobile web context, where there are diverse devices, operating systems and browsers to be considered. Multi-platform (e.g. web-based) sketching systems can be constructed to allow users to sketch on their device of preference. However, web applications do not always perform equally on all devices, and this is a critical issue, especially for applications that require instant visual feedback such as sketch-based systems. This paper describes a user study conducted to identify the most appropriate response rates (expressed in frames per second) for end users while sketching. The results are expected to guide stakeholders in defining response parameters for sketching applications on the web by showing intervals that are accepted, tolerated, and rejected by end users.