UML4ALL Syntax – A Textual Notation for UML Diagrams

  • Claudia LoitschEmail author
  • Karin Müller
  • Stephan Seifermann
  • Jörg Henß
  • Sebastian Krach
  • Gerhard Jaworek
  • Rainer Stiefelhagen
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10896)


UML-based software modelling addresses the needs of sighted people but creates barriers for visually impaired people. Textual representations are a general premise to make modelling languages accessible for people with blindness, but their degree of accessibility differs. This paper presents the UML4ALL syntax designed to address the sequential way of working of blind people using screen reader technology. The proposed UML notation comprises four principles introduced in this paper. An evaluation with sighted and visually impaired people showed that the UML4ALL syntax has a good usability for both target groups.


UML Textual notation Accessibility Disability UML4ALL 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Claudia Loitsch
    • 1
    Email author
  • Karin Müller
    • 1
  • Stephan Seifermann
    • 2
  • Jörg Henß
    • 2
  • Sebastian Krach
    • 2
  • Gerhard Jaworek
    • 1
  • Rainer Stiefelhagen
    • 1
  1. 1.Karlsruhe Institute of TechnologyKarlsruheGermany
  2. 2.FZI Research Center for Information TechnologyKarlsruheGermany

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