spec 2 linked patterns checked
MDN ARIA meter role
Documents meter as a read-only graphical display of a numeric value in a defined range, recommends native meter where possible, requires an accessible name, defines value attributes, and warns not to use meters for progress.
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What this source can teach
Use this source to check a technical or accessibility requirement against its exact wording and scope.
- Start with the original. Open the source and find the guidance or example relevant to your task.
- Trace the connection. Use the claim notes below to see how this site applies the source to specific patterns.
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Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| AI confidence shown as fake precision | Flag this anti-pattern when an AI or automated surface shows a precise score without calibration scope, decision threshold, freshness, uncertainty reason, or safe next action. | The interface distinguishes raw internal scores from user-facing calibrated confidence. | Supports separating read-only bounded meters from AI confidence or probability displays. |
| Meter | Choose meter when a read-only scalar value has a meaningful minimum and maximum. | The meter is read-only; users cannot drag, type, increment, or submit the meter itself. | MDN supports read-only meter role semantics, accessible names, min/max/current values, useful value text, native meter preference, and progress distinction. |
Comparisons supported by this source
- AI confidence shown as fake precision vs confidence / uncertainty display vs meter vs source grounding display vs warning text vs human approval gate
Supports separating read-only bounded meters from AI confidence displays.
- Meter vs progress bar vs slider vs spinbutton
MDN defines ARIA meter as a read-only range value with an accessible name and explicitly separates it from progress.
Evidence Role
This source is treated as spec evidence. Its value comes from the specific claims and setting described above.
Publisher: MDN Web Docs. Last checked: .