Validation and Verification : Verification

A verification check ensures that data is correctly transferred into a computer from the medium that it was originally stored on.

Verification checks are usually used to check that information written on a data collection form has been correctly typed into a computer by a data entry worker. Verification checks do not ensure that the entered data is correct. If the original form was completed incorrectly then the entered data will pass a verification check despite being incorrect.

The two most common methods of verification are :

Verification Checks
On Screen	Entered data is displayed and the user is prompted to confirm that it matches the data on the input form.
Dual Input	Data is entered twice and the two data sets compared. If there are any differences then the data is checked by the user and corrected.

GCSE ICT Companion 04 - (C) P Meakin 2004