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Success Criterion · WCAG 3.2.4

Consistent Identification

Components that have the same functionality within a set of Web pages are identified consistently.

Level AAWCAG 2.0Understandable3.2 · Predictable
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Goal

Identify components consistently across pages.

What to do

Use the same labels/names for components that have the same functionality (e.g., “Search” always means search).

Why it matters

Consistent identification reduces confusion and improves learnability.

Success criterion

What WCAG 3.2.4 requires

Summarized directly from the official Understanding document so teams can quote the requirement accurately.

Components that have the same functionality within a set of Web pages are identified consistently.

Intent

Why WCAG created this requirement

  • Consistent names help users learn interfaces.
  • Inconsistent labeling increases cognitive load and errors.
  • Applies to labels, icons, and accessible names.

Benefits

Who gains when you pass

  • Users with cognitive disabilities benefit from predictable language.
  • Screen reader and speech users benefit from consistent accessible names.
  • All users avoid confusion and misinterpretation.

Why it matters

User impact when this criterion fails

Summaries drawn from the Understanding document help you socialize impact statements with product stakeholders.

Users may not recognize that two controls do the same thing when labeled differently.

Voice users may fail to activate controls if names vary unexpectedly.

Overview

If multiple pages use the same type of control (e.g., a search feature), label and identify it consistently. Don’t call it “Find” on one page and “Search” on another if it’s the same function.

  • Standardize labels and icons for common actions across the design system.
  • Ensure accessible names align with visible labels (see 2.5.3).
  • Keep icon meaning consistent and avoid reusing icons for different actions.

Reference: All summaries and highlights originate from Understanding WCAG 3.2.4 and the W3C quick reference.

Fast facts

Conformance level
Level AA
WCAG version introduced
WCAG 2.0
Principle
Understandable
Guideline
3.2 · Predictable

Examples

Make success tangible for teams

Share pass/fail snapshots to coach designers, engineers, QA, and content authors.

Search

Pass

Search is consistently labeled “Search” across the site.

Fail

Same search feature is labeled “Find” on some pages and “Lookup” on others.

Settings icon

Pass

Gear icon always means “Settings”.

Fail

Gear icon means “Filters” on one page and “Settings” on another.

Evidence to keep

Document conformance decisions

Capture artifacts for VPATs, procurement reviews, and regression testing.

  • Document a label/icon glossary for the design system.
  • List common components and their standard names (visible and accessible).

Official resources

Deep dives and supporting material

Keep these links handy when writing acceptance criteria or responding to audits.

Implementation checklist

Capture progress and blockers

  • Create a canonical list of labels for common actions (Search, Save, Delete, Settings).
  • Update components to use consistent visible labels and accessible names.
  • Standardize icons used for common actions.
  • Audit across pages to ensure consistency.

Testing ideas

Prove conformance with evidence

  • Review repeated components across pages and verify consistent labels/names.
  • Use a screen reader to confirm accessible names are consistent across contexts.
  • Test voice control activation with consistent labels.

Related success criteria

More from Predictable (3.2)

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