Understandable Information UI operation
- Information and the operation of the user interface must be understandable.
1. Readable
- Make text content readable and understandable.
Guideline 3.1 Readable (opens in a new tab):
- Success Criterion 3.1.1 Language of Page
- Success Criterion 3.1.2 Language of Parts
2. Predictable
- Make Web pages appear and operate in predictable ways.
Guideline 3.2 Predictable (opens in a new tab)
- Success Criterion 3.2.1 On Focus
- Success Criterion 3.2.2 On Input
- Success Criterion 3.2.3 Consistent Navigation
- Success Criterion 3.2.4 Consistent Identification
- Success Criterion 3.2.6 Consistent Help
3. Input Assistance
- Help users avoid and correct mistakes.
Guideline 3.3 Input Assistance (opens in a new tab):
- Success Criterion 3.3.1 Error Identification
- Success Criterion 3.3.2 Labels or Instructions
- Success Criterion 3.3.3 Error Suggestion
- Success Criterion 3.3.4 Error Prevention (Legal, Financial, Data)
- Success Criterion 3.3.7 Redundant Entry
- Success Criterion 3.3.8 Accessible Authentication (Minimum)
- Success Criterion 3.3.9 Accessible Authentication (Enhanced)