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July 26, 2026Scientific Journal of King Faisal University Basic and Applied SciencesOpen Access

WCAG-ODC: an orthogonal defect classification framework for web accessibility defects

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Authors

MAMohammed Alannsary

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Overview

Randomized trial evaluates accessibility defect analysis in e-services, highlighting new classification methods.

Key Points

  • The goal is to improve the analysis and prioritization of web accessibility defects using a structured framework.
  • Introduced WCAG-ODC framework based on Orthogonal Defect Classification principles.
  • Conducted case study on nine public e-services using data from automated evaluation tools.
  • Developed a defect-level dataset with 2,590 recorded accessibility findings classified into 31 rule categories.
  • Keyboard Access, Interactive Controls, and Structure and Navigation defects were the most common.
  • Analysis showed significant relationships between technical defect families and user-facing accessibility barriers.
  • Independent coding validation revealed a high agreement for Defect Type classification (κ = 0.922), indicating framework reliability.

Cite This Study

Mohammed Alannsary (2026) studied this question.

synapsesocial.com/papers/6a65a7b4d3aea3239cd786c3https://doi.org/10.1007/s44523-026-00010-y
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  4. 4A comparative analysis of single-page and site-wide tools with the OPTIMAL-EM framework2026
  5. 5OCR is All you need: Importing Multi-Modality into Image-based Defect Detection System2024