WCAG 2.0 Structure & Testability
Principles, guidelines, success criteria
Success criteria are testable propositions – for example:
WCAG 1.0 Checkpoint 2.2
"Ensure that foreground and background color combinations have sufficient contrast..."
WCAG 2.0 Success Criteria 1.4.1
"Text or diagrams, and their backgrounds, have a luminosity contrast ratio of at least 5:1..."
the set of technologies supported by assistive technologies and which can be used to meet WCAG 2.0