Literature Reviews

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

• Application of Traditional Software Testing Methodologies to Web Accessibility

  Cynthia C. Shelly, Mike Barta (2010) — Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A)

  Written by authors from Microsoft and the University of Washington, this paper argues that the evolution of web content from static documents to dynamic Rich Internet Applications (RIAs) demands a corresponding evolution in accessibility testing meth…

  • accessibility testing
  • software development
  • quality assurance
  • shift-left accessibility
  • automated testing
  • WCAG compliance
  • rich internet applications

• Benchmarking Web Accessibility Evaluation Tools: Measuring the Harm of Sole Reliance on Automated Tests

  Markel Vigo, Justin Brown, Vivienne Conway (2013) — Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper provides rigorous empirical evidence on the limitations of automated web accessibility evaluation tools by benchmarking six state-of-the-art tools — AChecker, SortSite, Total Validator, TAW, Deque, and AMP — against expert manual evaluatio…

  • automated testing
  • accessibility evaluation
  • WCAG compliance
  • evaluation tools
  • benchmarking
  • false positives
  • conformance testing

• Accessibility Assessment of Violations on the Stack Overflow Platform

  Ingrid M. Miranda da Silva, Luciano Arruda Teran, Marcelle Pereira Mota (2022) — Proceedings of the 21st Brazilian Symposium on Human Factors in Computing Systems (IHC)

  This study investigates whether code snippets shared on Stack Overflow — one of the world's most popular developer Q&A platforms with over 120 million monthly visitors — follow web accessibility guidelines. The researchers built a tool called A11y Re…

  • web accessibility
  • repository mining
  • software development
  • code quality
  • WCAG compliance
  • developer awareness
  • automated testing
  • HTML
  • CSS

• Evaluating Accessibility-in-Use

  Markel Vigo, Simon Harper (2013) — Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper introduces a novel method for evaluating web accessibility that goes beyond traditional guideline conformance testing. The authors argue that standards like WCAG 2.0 capture only about 53% of accessibility problems experienced by users, mi…

  • accessibility evaluation
  • user interaction
  • behavioural analysis
  • screen readers
  • blind and low vision
  • automated testing
  • conformance testing
  • user experience

• Web accessibility snapshot: an effort to reveal coding guidelines conformance

  Vagner Figueredo de Santana, Rogério Abreu de Paula (2013) — Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper presents the first iteration of the Web Accessibility Snapshot (WAS) project, a large-scale automated evaluation of web accessibility conformance across two sets of 1,000 websites each: the Alexa top 1,000 most popular sites and a randomly…

  • automated testing
  • WCAG compliance
  • web accessibility
  • accessibility metrics
  • web standards
  • large-scale evaluation

• Towards Web Accessibility Repair

  Nádia Fernandes (2013) — Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This doctoral consortium paper presents early-stage research on automatically evaluating and repairing accessibility problems in Rich Internet Applications (RIAs). The author identifies a critical gap: as the web evolves from static pages to complex,…

  • automated testing
  • accessibility evaluation
  • accessibility repair
  • rich internet applications
  • ARIA
  • WCAG 2.0
  • dynamic content
  • web development tools

• Optimus Web: Selective Delivery of Desktop or Mobile Web Pages

  Nádia Fernandes, Tiago Guerreiro, Diogo Marques, Luís Carriço (2015) — Proceedings of the 12th International Web for All Conference (W4A)

  This paper presents Optimus Web, a client-side web proxy system that automatically selects and delivers the most accessible version of a website — either its desktop or mobile representation — to blind users. The system uses QualWeb, an automated acc…

  • web accessibility
  • blind users
  • screen readers
  • mobile accessibility
  • automated testing
  • content adaptation
  • web proxy
  • WCAG evaluation

• A4TV: Assessing and Ameliorating the Accessibility of the Ascending Connected TV Platforms

  Daniel Costa (2015) — Proceedings of the 12th International Web for All Conference (W4A)

  This doctoral consortium paper proposes a two-stage research programme to study and improve the accessibility of connected TV platforms for visually impaired users. Connected TVs — smart TVs and set-top boxes with internet connectivity — use web tech…

  • connected TV
  • blindness
  • visual impairment
  • accessibility evaluation
  • multimodal interaction
  • WAI-ARIA
  • WCAG
  • mobile accessibility
  • second screen
  • audio description
  • automated testing

• Acrolinx: A Controlled-Language Checker Turned into an Accessibility Evaluation Tool for Image Text Alternatives

  Silvia Rodríguez Vázquez, Sabine Lehmann (2015) — Proceedings of the 12th International Web for All Conference (W4A)

  This paper presents a novel application of controlled-language checking technology to a persistent accessibility problem: evaluating the quality of image text alternatives, not just their presence. The authors observe that while most web accessibilit…

  • alt text
  • image accessibility
  • automated testing
  • controlled language
  • natural language processing
  • accessibility evaluation
  • web accessibility
  • content quality

• CAN: Composable Accessibility Infrastructure via Data-Driven Crowdsourcing

  Yun Huang, Brian Dobreski, Bijay Bhaskar Deo, Jiahang Xin, Natã Miccael Barbosa, Yang Wang, Jeffrey P. Bigham (2015) — Proceedings of the 12th International Web for All Conference (W4A)

  This paper presents CAN (Composable Accessibility Infrastructure), a crowdsourcing platform that collects web accessibility issues from real websites and their open-source fixes, dynamically composes solutions on-the-fly, and delivers the crowdsource…

  • crowdsourcing
  • web accessibility
  • accessibility education
  • automated testing
  • screen readers
  • accessibility remediation
  • developer tools
  • WCAG