QW-ACT-R39 Alle overskriftceller i ein tabell er knytt til dataceller

Testar på krav:

• 1.3.1 Informasjon og relasjoner

Innhaldstype:

Krav til samsvar:

Applicability

This rule applies to any HTML element with a semantic rowheader or columnheader for which all of the following is true:

• the element is visible; and
• the element is included in the accessibility tree; and
• the element has at least one ancestor in the flat tree that is a semantic table or grid; and
• the element's closest ancestor in the flat tree that is a semantic table or grid is included in the accessibility tree.

Expectation

Each target element is assigned to at least one element with an inheriting semantic cell.

Assumptions

This rule assumes that table header cells have a relationship conveyed through presentation with other cells within the same table. This excludes edge cases such as a table definition where there is only one header cell, or a table definition where there are multiple headers and no other cells. In such scenarios the rule fails, but success criterion 1.3.1 Info and Relationships could still be satisfied.