What is the purpose of validation?

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Tags

1. #reasonable
2. #programmed
3. #accept
4. #automatic
5. #entered
6. #validation
7. #likely
8. #computer
9. #numbers
10. #accuracy
11. #student
12. #ensure
13. #check
14. #school
15. #sensible
16. #between
17. #example
18. #secondary