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Data verification

Data verification and data validation are two methods of making sure no errors occur in the data before processing takes place. (Make sure you know the difference between them!)
 

Data Verification

Typing data into a computer from a data capture form is called transcribing. If an error is made it is a transcription error.

Verification is done to eliminate transcription errors.

Methods of verification...

Proof reading A visual check by eye that no errors have been made.

This is sometimes done by printing out data that has been input, and sending it back to the source of the data to check. For example, printed proofs of the pages of a book may be sent back to the author for checking.
Double-keying This is a check to see if data has been keyed in correctly. The data is keyed in twice, and the computer will only accept the data for processing if the two versions are identical.