1.3.2: Meaningful Sequence [A]

Description Sufficient Techniques Advisory Techniques Failures Notes

Description

When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.

Sufficient Techniques

Sufficient Techniques for Success Criterion 1.3.2

Note: Other techniques may also be sufficient if they meet the success criterion. See Understanding Techniques.

• G57: Ordering the content in a meaningful sequence
• G57: Ordering the content in a meaningful sequence
  • H34: Using a Unicode right-to-left mark (RLM) or left-to-right mark (LRM) to mix text direction inline
  • H56: Using the dir attribute on an inline element to resolve problems with nested directional runs
  • C6: Positioning content based on structural markup
  • C8: Using CSS letter-spacing to control spacing within a word
• C27: Making the DOM order match the visual order
• PDF3: Ensuring correct tab and reading order in PDF documents

Advisory Techniques

Advisory Techniques for Success Criterion 1.3.6

• Enabling user agents to find the version of the content that best fits their needs
• Using semantics to identify important features (e.g., coga-simplification="simplest")
• Using aria-invalid and aria-required

Failures

Failures for Success Criterion 1.3.2

• F34: Failure of Success Criterion 1.3.1 and 1.3.2 due to using white space characters to format tables in plain text content
• F33: Failure of Success Criterion 1.3.1 and 1.3.2 due to using white space characters to create multiple columns in plain text content
• F32: Failure of Success Criterion 1.3.2 due to using white space characters to control spacing within a word
• F49: Failure of Success Criterion 1.3.2 due to using an HTML layout table that does not make sense when linearized
• F1: Failure of Success Criterion 1.3.2 due to changing the meaning of content by positioning information with CSS

Notes