Page Title: Kapazittsplanung - Digital und Print
May 20, 2018 04:48

Data cells must use headers attribute

Actions

Severity Action
no actions

Details

Rule ID Table 7
Definition Data cells in complex data tables must use headers attribute to identify header cells.
Purpose
  • The data cells in complex data tables need to use the headers attribute to identify the appropriate header cells, since simple row/column relationships cannot be relied upon to provide header information.
  • Complex data tables are defined as tables with row and/or column spans, or more than one header cell (e.g. th element) in any row or column of the table.
WCAG Success Criteria

1.3.1 Info and Relationships (Level A, Primary Success Criterion)

Rule Category Tables
Scope Element
Target Resources td elements
  • td
Techniques
  • Use headers attribute on each td element used as a data cell to identify header information in complex data tables.
Manual Checks
  • Verify the each data cell has header cells that clearly identify the meaning of the content of the data cell.
  • Verify that empty td and th elements and does not need table headers.
Informational Links

Element Results

Element Identifier Result Element Position Message

Column Definitions

Element Identifier
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.