Forms that can cause serious losses due to user input such as "legal things", "financial transactions", "tests", etc. must cancel the submission or provide a confirmation screen before submit. It feels like level A, but it is level AA.
|Principle||Understandable||Information and the operation of user interface must be understandable.|
|Guideline||Input Assistance||Help users avoid and correct mistakes.|
|Criterion||Error Prevention (Legal, Financial, Data)
|On a web page where a legal act or a financial transaction occurs for a user, the data on the user-controllable data storage system is changed or deleted, or the user sends an exam answer, either cancellation, check or confirmation It is made to be able to do.|