One Fitts’ Law, Two Metrics

  • Julien GoriEmail author
  • Olivier Rioul
  • Yves Guiard
  • Michel Beaudouin-Lafon
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10515)


Movement time in Fitts’ law is usually considered through the ambiguous notion of the average of minimum movement times. In this paper, we argue that using two distinct metrics, one relating to minimum time and the other relating to average time can be advantageous. Both metrics have a lot of support from theoretical and empirical perspectives. We also give two examples, one in a controlled experiment and the other in a field study of pointing, where making the minimum versus average distinction is fruitful.


Minimum Time Motion Movement Time Distinct Metal Field Studies Channel Coding Theorem 
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Copyright information

© IFIP International Federation for Information Processing 2017

Authors and Affiliations

  • Julien Gori
    • 1
    Email author
  • Olivier Rioul
    • 1
  • Yves Guiard
    • 1
    • 2
  • Michel Beaudouin-Lafon
    • 2
  1. 1.LTCI, Telecom ParisTech, Université Paris-SaclayParisFrance
  2. 2.LRI, Univ. Paris-Sud, CNRS, Inria, Université Paris-SaclayOrsayFrance

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