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8.22 Level A − WCAG 2.0 Success Criterion 3.3.1 − Error Identification

If a user makes a mistake, use text to show him/her where and what he/she has done wrong, and how he/she can fix it.

Before Rectification

A web form sample with an error message 'The form contains errors'

In the screen on the above, an error has been identified without any information on where the error is and what needs to be fixed.

After Rectification

A web form sample with an error message 'Please use only numbers in the phone field'.

This is made accessible by telling the user where the error has occurred and what he/she needs to do to fix the error.

Link to Live Example for 3.3.1

WCAG 2.0 Reference:

http://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-identified.html