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      A Taxonomy of Number Entry Error

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      Proceedings of HCI 2011 The 25th BCS Conference on Human Computer Interaction (HCI)

      Human Computer Interaction

      4 - 8 July 2011

      Number entry, Human error, Taxonomy of error

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          Abstract

          People are prone to errors in many aspects of life, including when entering numbers. The effects of these errors can be disastrous, for example when an incorrect number is entered when programming a medical infusion pump or when entering financial information into a system. Designing better systems may help to prevent these errors however, in order to do this we need to understand far more about the types of errors being made, and their causes. Unfortunately, there are very few documented examples of number entry errors and thus many of the studies conducted so far rely upon modelled, not real world data. This paper reports a study that was designed to elicit number entry errors and the subsequent process of creating a taxonomy of errors from the information gathered. A total of 345 errors were gathered. A method for classifying the errors using 13 codes is proposed — this is a significantly higher figure than previously suggested, showing that currently we underestimate the true variety of such errors. These codes are then organised into a taxonomy similar to that of Zhang et al (2004). We show how this taxonomy can be used to guide future research into number entry errors by suggesting experimental conditions needed to provoke certain errors. The taxonomy may also be used during the initial stages of design to help the designer understand the categories of errors that users are most likely to make and thus design accordingly.

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          Author and article information

          Contributors
          Conference
          July 2011
          July 2011
          : 187-196
          Affiliations
          UCLIC

          MPEB, Malet Place

          London, WC1E 7JE
          University of York

          Heslington

          York, YO10 5DD
          Article
          10.14236/ewic/HCI2011.46
          © Sarah Wiseman et al. Published by BCS Learning and Development Ltd. Proceedings of HCI 2011 The 25th BCS Conference on Human Computer Interaction, Newcastle Upon Tyne, UK

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Proceedings of HCI 2011 The 25th BCS Conference on Human Computer Interaction
          HCI
          25
          Newcastle Upon Tyne, UK
          4 - 8 July 2011
          Electronic Workshops in Computing (eWiC)
          Human Computer Interaction
          Product
          Product Information: 1477-9358BCS Learning & Development
          Self URI (journal page): https://ewic.bcs.org/
          Categories
          Electronic Workshops in Computing

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