Information Technology (IT) Glossary - Essential Information Technology (IT) Terms & Definitions | Gartner

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Helping Tech Marketers Drive Growth | Gartner

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When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

January 2026

December 2025

Gartner Inc

	Title / URL	Issues
	Information Technology (IT) Glossary - Essential Information Technology (IT) Terms & Definitions \| Gartnerwww.gartner.com/en/information-technology/glossary	5
	Gartner for Heads of Enterprise Architecturewww.gartner.com/en/enterprise-architecture	3
	Helping Tech Marketers Drive Growth \| Gartnerwww.gartner.com/en/tech-marketing	3
	Gartner for Software Engineering Leaderswww.gartner.com/en/software-engineering	3
	Gartner for Product Management Leaderswww.gartner.com/en/product-management	3
	Gartner HR Insightswww.gartner.com/en/human-resources	3
	Leverage Technology with Gartner for Data and Analytics Leaderswww.gartner.com/en/data-analytics	3
	Gartner Communications Insightswww.gartner.com/en/communications	3
	Gartner for Information Technology (IT) Leaderswww.gartner.com/en/information-technology	3
	Explore Complimentary Gartner Business and IT Webinarswww.gartner.com/en/webinars	3

Fix missing ARIA label IDs

Gartner Inc

Where this issue has occurred