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Shortlinks and tiny keyboards: a systematic exploration of design trade-offs in link shortening services

Gould, SJJ; Cox, AL; Brumby, DP; Wiseman, S; (2016) Shortlinks and tiny keyboards: a systematic exploration of design trade-offs in link shortening services. International Journal of Human-Computer Studies , 96 pp. 38-53. 10.1016/j.ijhcs.2016.07.009. Green open access

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Abstract

Link-shortening services save space and make the manual entry of URLs less onerous. Short links are often included on printed materials so that people using mobile devices can quickly enter URLs. Although mobile transcription is a common use-case, link-shortening services generate output that is poorly suited to entry on mobile devices: links often contain numbers and capital letters that require time consuming mode switches on touch screen keyboards. With the aid of computational modeling, we identified problems with the output of a link-shortening service, bit.ly. Based on the results of this modeling, we hypothesized that longer links that are optimized for input on mobile keyboards would improve link entry speeds compared to shorter links that required keyboard mode switches. We conducted a human performance study that confirmed this hypothesis. Finally, we applied our method to a selection of different non-word mobile data-entry tasks. This work illustrates the need for service design to fit the constraints of the devices people use to consume services.

Type: Article
Title: Shortlinks and tiny keyboards: a systematic exploration of design trade-offs in link shortening services
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.ijhcs.2016.07.009
Publisher version: http://dx.doi.org/10.1016/j.ijhcs.2016.07.009
Language: English
Additional information: Copyright © 2016 The Authors. Published by Elsevier Ltd. Open Access: made available under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence (https://creativecommons.org/licenses/by/4.0/)
Keywords: Link shortening, short links, keyboard, optimization, typing, data entry, mobile, touchscreen
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > UCL Interaction Centre
URI: https://discovery.ucl.ac.uk/id/eprint/1505727
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