W3C ARIA Authoring Practices 1.2 for Developers and Evaluators

Mark McCarthy, M.S., CPWA

Quality Assurance Accessibility Engineer

Administrative Information Technology Services


Jon Gunderson, Ph.D., CPWA

Coordinator of Accessible IT Group

Division of Disability Resources and Educational Services


2021 Illinois Web Conference


April 8th, 2021



  1. Overview
  2. Describing Semantics and Behavior
  3. Standardize Information Provided to Accessibility APIs
  4. ARIA Contract with Browsers and Assistive Technologies
  5. Accessible Name Calculation
  6. Accessible Description Calculation
  7. aria-details: Navigation to descriptive or related content on a page
  8. New features in ARIA 1.2
  9. HTML harmonization
  10. ARIA 1.2 Combobox Design Pattern
  11. Interface Description Language (IDL): Setting Roles, Properties and States
  12. Interface Description Language (IDL): Getting Values
  13. Interface Description Language (IDL): Test Page
  14. Interface Description Language (IDL): Gotchas
  15. Carousel Design Pattern and Examples
  16. Combobox Design Pattern and Examples
  17. SkipTo.js for Keyboard Navigation
  18. W3C ARIA Assistive Technology Project Community Group
  19. Prototype of ARIA-AT Test Harness and Test Cases
  20. Questions and Discussion