KwickClips Course Topics · 45 sec · free
Which check would stop age 150?
Short answer. A validation range check.
What is double entry?
Typing the data twice so the computer compares them: verification.
Two kinds of check
| Check | Asks |
|---|---|
| Validation | Sensible? |
| Verification | Copied right? |
| Examples | Range, retype |
Remember
| Validation: sensible data |
| Verification: copied correctly |
Age one hundred fifty? Accept it? Two checks. Validation asks, is it sensible? Verification asks, was it copied right? Range checks validate. Double entry verifies. Remember. Validation: sensible. Verification: copied correctly.
This clip is from the full lesson: Validation and verification checks — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: Cambridge IGCSE Grade 10 Computer Science (0478)
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