Literature Reviews

Reviewed research papers, articles, and publications relevant to digital accessibility.

• How Much Does Expertise Matter? A Barrier Walkthrough Study with Experts and Non-Experts

  Yeliz Yesilada, Giorgio Brajnik, Simon Harper (2009) — Proceedings of the 11th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '09)

  This paper investigates whether expertise matters in manual web accessibility evaluation by comparing results from 19 expert and 51 non-expert judges using the Barrier Walkthrough (BW) method. The BW method is an analytical technique based on heurist…

  • web accessibility
  • accessibility evaluation
  • barrier walkthrough
  • WCAG
  • evaluator effect
  • expertise
  • accessibility testing
  • research methodology

• Testability and Validity of WCAG 2.0: The Expertise Effect

  Giorgio Brajnik, Yeliz Yesilada, Simon Harper (2010) — Proceedings of the 12th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2010)

  This paper investigates the testability and validity of WCAG 2.0 success criteria through an empirical study with 22 accessibility experts and 27 non-experts (university students with 14 hours of accessibility training). Participants evaluated all 61…

  • WCAG 2.0
  • web accessibility
  • conformance review
  • evaluator effect
  • accessibility audit
  • guidelines
  • expertise
  • evaluation methodology

• Web Accessibility Evaluation in a Crowdsourcing-Based System with Expertise-Based Decision Strategy

  Shuyi Song, Jiajun Bu, Ye Wang, Zhi Yu, Andreas Artmeier, Lianjun Dai, Can Wang (2018) — Proceedings of the 15th International Web for All Conference (W4A 2018)

  This short paper presents a crowdsourcing-based web accessibility evaluation system that addresses the scalability bottleneck in manual accessibility evaluation: expert evaluators are scarce (training takes years) and expensive, yet many WCAG checkpo…

  • web accessibility
  • crowdsourcing
  • accessibility evaluation
  • WCAG
  • automated testing
  • manual evaluation
  • expertise
  • quality assurance
  • China