Error Prevention (All)

Understanding WCAG2.0

The form can be canceled or confirmed at the time of submission.

Principle	Understandable	Information and the operation of user interface must be understandable.
Guideline	Input Assistance	Help users avoid and correct mistakes.
Criterion	Error Prevention (All) (3.3.6 AAA)	On a web page requesting the user to transmit information, it is made possible to cancel, check, or confirm.

URL of Techniques for WCAG 2.0

• G98: Providing the ability for the user to review and correct answers before submitting
• G99: Providing the ability to recover deleted information
• G155: Providing a checkbox in addition to a submit button
• G164: Providing a stated time within which an online request (or transaction) may be amended or canceled by the user after making the request
• G168: Requesting confirmation to continue with selected action
• G199: Providing success feedback when data is submitted successfully