Short links and tiny keyboards: A systematic exploration of design trade-offs in link shortening services

Sandy Gould, Anna L. Cox, Duncan P. Brumby, Sarah Wiseman

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
376 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)38-53
JournalInternational Journal of Human-Computer Studies
Volume96
Early online date28 Jul 2016
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Data entry
  • Touchscreen
  • Link shortening
  • Short links
  • Keyboard
  • Optimization
  • Typing
  • Mobile

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