Table Elements [WCAG.PDF.06]
Test Basis (WCAG 2.0)
This test is based on the WCAG 2.0 Technique PDF6: Using table elements for table markup in PDF-documents
Technique URL (WCAG 2.0)
Why this maybe a Barrier
Users of screen readers or screen magnification rely on the correct mark up of the logical relationships within a table to understand the information. If it is not possible to determine the context of a table entry (such as: which are the row and column titles), the information contained in a table cell doesn't make sense.
Note that it is not sufficient if the relationship can be determined from the visual presentation of the table, it has to part of the tag structure as well.
WCAG 2.0 Reference
1.3.1 Meaningful Sequence: ““Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text. (Level A)”