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• Quantitative Metrics for Measuring Web Accessibility

  Markel Vigo, Myriam Arrue, Giorgio Brajnik, Raffaella Lomuscio, Julio Abascal · 2007 · Proceedings of the 2007 International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper addresses a fundamental limitation of WCAG conformance levels (A, AA, AAA): they function as binary pass/fail thresholds that cannot distinguish between a site meeting all Priority 1 checkpoints and one meeting all Priority 1 plus nearly all Priority 2 checkpoints —…

  accessibility metrics · automated testing · accessibility evaluation · quality assurance · web accessibility monitoring

• Effects of sampling methods on web accessibility evaluations

  Giorgio Brajnik, Andrea Mulas, Claudia Pitton · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '07)

  Brajnik, Mulas, and Pitton's Assets '07 paper is a large, careful empirical investigation of the sampling step in web-accessibility evaluation — the step at which an evaluator picks which pages of a site to actually test. For any site above a trivial size, full coverage is…

  web accessibility · accessibility evaluation · sampling methods · accessibility metrics · conformance testing

• 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 end users encounter. The…

  web accessibility · accessibility metrics · accessibility evaluation · accessibility testing · conformance testing

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