Verification and Validation Flashcards
What’s an error?
Any unexpected issue causing the computer to not function properly
What is data validation?
The computerized checking of input data to ensure it is of the right general type/value before it is processed
What’s data verification?
double checking for mistakes when copying data from one medium to another
Double-entry
entering the same data twice to see if something is different; will not be processed if there are differences
Proofreading
Checks data inputted into the computer against the original source document to ensure nothing is different (may be done by another person)
Very time consuming
Range Checks
Ensures numbers fall within a certain range
Reasonableness Checks
Ensures data isn’t completely unrealistic
Data Type Checks
Ensures the right type of data is entered
Consistency Checks
Can be used to ensure false/ dishonesty data isn’t inputted
Compares data to data already entered (eg: DOB in one field and Age in another)
Presence Checks
Makes fields required meaning there must be data in them
Length Check
Ensures data is the correct length (not longer/ shorter)
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Informational Webpage
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