Accessibility Metatesting

Jonathan Robert Pool

14 citations0/0 files storedInternational Web for All Conference (W4A)

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Digital Accessibility for Disabilities Usability and User Interface Design Software Testing and Debugging Techniques

Abstract

Automated web accessibility testing tools have been found complementary. The implication: To catch as many issues as possible, use multiple tools. Doing this efficiently entails integration costs. Is there a small set of tools that, together, make additional tools redundant? I approach this problem by comparing nine comprehensive accessibility testing tools that are amenable to integration: alfa, axe-core, Continuum, Equal Access, HTML CodeSniffer, Nu Html Checker, QualWeb, Tenon, and WAVE. I tested 121 web pages of interest to CVS Health with these tools. Each tool only fractionally duplicated any other tool. Each discovered numerous issue instances missed by all the others. Thus, testing with all nine tools was substantially more informative than testing with any subset.

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2022Investigation of COVID-19 Vaccine Information Websites across Europe and Asia Using Automated Accessibility Protocols 2019Types of problems encountered by automated tool accessibility assessments, expert inspections and user testing

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2025Accessibility Insights from Student's Software Engineering Projects 2025A comprehensive evaluation of life sciences data resources reveals significant accessibility barriers 2024A Universal Web Accessibility Feedback Form: A Participatory Design Study 2025Assessing the Limits of Automated Accessibility Testing: Insights for QA Engineers and Tool Developers 2026Evaluating the Impact of Accessibility Testing Tool Usage Across the Software Development Lifecycle in Student Projects 2026A Multi-Agent Framework for Accessible Web Code Generation 2024Accessibility Testing and Sustainability—Considerations, Concepts, and Lasting Implementations

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