Literature Reviews

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

• SAMBA: a semi-automatic method for measuring barriers of accessibility

  Giorgio Brajnik, Raffaella Lomuscio (2007) — Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '07)

  Brajnik and Lomuscio argue that web accessibility cannot be managed without being measured, yet existing accessibility metrics are underdeveloped and almost universally tied to conformance with WCAG checkpoints rather than to the real-world barriers …

  • web accessibility
  • accessibility metrics
  • accessibility evaluation
  • accessibility testing
  • conformance testing
  • barrier walkthrough
  • expert review
  • automated testing
  • quality assurance

• Is Accessibility Conformance an Elusive Property? A Study of Validity and Reliability of WCAG 2.0

  Giorgio Brajnik, Yeliz Yesilada, Simon Harper (2012) — ACM Transactions on Accessible Computing

  This landmark study investigates whether WCAG 2.0's definition of "Reliably Human Testable"—that at least 80% of knowledgeable evaluators would agree on an audit conclusion—is actually achievable in practice. The researchers recruited 25 experienced …

  • WCAG
  • conformance testing
  • accessibility evaluation
  • evaluator effect
  • reliability
  • validity
  • expert review