Error Prevention (Legal, Financial, Data)

Success criterion 3.3.4 · Level AA

Error Prevention (Legal, Financial, Data)

For web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, actions are reversible, checked for input errors, and confirmed before final submission.

Principle 3: Understandable · Guideline 3.3: Input Assistance

What each role can do

Product manager

Incorporate review, confirmation, and correction steps before finalizing sensitive transactions.

Designer

Design clear review pages that summarize user actions and decisions before final confirmation.

Developer

Implement mechanisms for reviewing, confirming, and correcting information prior to submission.

Tester

Test the process to ensure users can easily review, correct, and confirm actions without confusion.

Once it is fixed

“Knowing I can review and confirm my actions gives me peace of mind. No surprises!”