Use case description:

1. The user uploads a form
2. The application tries to recognize the numbers
3. The numbers that it has detected and whether they add up are displayed
4. If the user agrees with what the computer has detected the process is finished.
5. If the user doesn't agree with the computer, he/she has the opportunity to submit the correct numbers.
6. All this data is stored in a database and can serve to improve the accuracy of the algorithms.