How machine delays change user strategies

  • Authors:
  • Paddy O'Donnell;Stephen W. Draper

  • Affiliations:
  • -;-

  • Venue:
  • ACM SIGCHI Bulletin
  • Year:
  • 1996

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Abstract

As machine response delays vary, the most important effect on users may be not their annoyance but that they change the way they use an interface. Even the very simple task of copytyping three digit numbers gives rise to at least three different user strategies (i.e. procedures). However the effect seems not be a simple function of delay length, contrary to earlier reported work. Instead users are probably shifting between strategies more fluidly.