← CSEC Information Technology lessons

1.13-1.14 - Data Validation and Verification

⭐ +110 XP
  • ✓Differentiate between validation and verification of data.
  • ✓Identify appropriate validation checks: range, reasonableness, data type, consistency, presence, format, length.
  • ✓Identify appropriate verification methods: double entry, proofreading.
  • ✓Apply validation and verification to a given scenario.
⏱ 0 mins🎯 22 marks
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In 2019 a Caribbean bank's online form let users enter their age as '-22'. Result? The system gave the customer a senior discount AND a teen savings rate at the same time. One missing validation check made the bank lose money. This lesson saves YOUR future code from the same fate.
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Predict: which statement do you think best describes validation?

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💡Engage
In 2019 a Caribbean bank's online form let users enter their age as '-22'. Result? The system gave the customer a senior discount AND a teen savings rate at the same time. One missing validation check made the bank lose money. This lesson saves YOUR future code from the same fate.
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