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Data validation Flashcards
Cambridge Nationals IT Level 1/Level 2
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Data validation
The process of ensuring data entered is correct and meets specific criteria before being processed.
Data type check
Validation tool that ensures data entered matches the required type, e.g., numeric or text.
Format check
Validation tool that ensures data follows a specific format, e.g., DD/MM/YYYY for dates.
Input mask
Validation tool that restricts data entry to a specific pattern, e.g., phone numbers.
Length check
Validation tool that ensures data entered is within a specified number of characters.
Limited choice methods
Validation tools like drop-down lists, radio buttons, and tick lists to restrict user input to predefined options.
Presence check
Validation tool that ensures required fields are not left blank.
Range check
Validation tool that ensures numeric data falls within a specified range.
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