BinScroll: a rapid selection technique for alphanumeric lists

  • Authors:
  • Juha Lehikoinen;Mika Röykkee

  • Affiliations:
  • Nokia Research Center, Tampere, FINLAND;Nokia Research Center, Tampere, FINLAND

  • Venue:
  • CHI '00 Extended Abstracts on Human Factors in Computing Systems
  • Year:
  • 2000

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Abstract

We present a new, efficient technique to find an alphanumeric item in a sorted list. Our technique, called BinScroll, is based on binary search, the well-known computer science search algorithm. BinScroll can be used with a minimum of four buttons, making it ideal for keyboardless mobile use. It can also be implemented with a minimum of three lines of text, making it suitable for devices with limited screen space. Our initial evaluation showed that after 15 minutes of training, a novel user is able to locate any item from a list of 10 000 movie names in 14 seconds on average.