How to test Table structure

How to evaluate the KWCAG 2.2 checkpoint “Table structure”. Automation catches part of it; the rest needs a person.

Which standards this maps to

Korean standard (KWCAG 2.2): Checkpoint 3 Table structure; Perceivable · KS X OT0003 5.3.1
International standard (WCAG 2.2): 1.3.1 Info and Relationships (A) ↗

Verify captions and header cells exist (automated) and header associations read correctly in a screen reader.

5 automated rules judge this checkpoint. Each comes with remediation guidance.

Table headers must refer to data cells th-has-data-cells
Ensure each th actually describes data cells in the table.
td headers attribute must reference cells in the same table td-headers-attr
headers must reference th ids within the same table; prefer scope for simpler tables.
scope attribute must be used correctly scope-attr-valid
Use scope only on th with col/row/colgroup/rowgroup values.
Table header cells should not be empty empty-table-header
Fill header text or change empty th to td.
Table caption and summary should differ table-duplicate-name
Caption and summary should not duplicate each other.

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