The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen Displays on the Web

  • Willian Massami Watanabe
  • Renata Pontin de Mattos Fortes
  • Maria da Graça Campos Pimentel
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6948)


Touch-screen interfaces have become a widespread-input-device tendency for computer systems. In this context, many studies investigate how to improve general usability for touch-screen devices. These studies consider different interaction design features that improve the usability for touch sensitive surfaces, considering the low accuracy it presents, given obstacles such as the “fat finger problem”, low-perception of pointing mechanisms, difficulties in the selection of small objects, among others. This work aims at presenting the link-offset-scale touch interaction mechanism for improving the usability for touch-screen devices. The link-offset-scale mechanism makes use of web-application-structure meta-data (identifying links) to provide feedback information about the selection of links in touch interfaces, while the surface is touched by the user. The link-offset-scale mechanism’s primary goal is to reduce the number of errors that users commit while interacting with touch-screen devices in the Web.


Touch-screen displays pervasive computing ubiquitous computing usability in touch-screen devices web usability 


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Copyright information

© IFIP International Federation for Information Processing 2011

Authors and Affiliations

  • Willian Massami Watanabe
    • 1
  • Renata Pontin de Mattos Fortes
    • 1
  • Maria da Graça Campos Pimentel
    • 1
  1. 1.Computer Science Department, Institute of Mathematics and Computer ScienceUniversity of Sao PauloSao CarlosBrazil

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