Verification is used to check that data has been entered into the computer matches the original source data. It does not check that the data is correct.

One method of verification is typing data into the computer twice. The computer automatically compares the two versions and tells the user if they're not the same. When network users change their password, they have to type in the new password twice to verify it.

Another method is to check what is on the computer screen against the original document and make sure that they both match.

A third method would be to print out the data which has been entered and then to check the printed copy against the original document, again to see that they both match.



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