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data errors (processing errors (incorrectly written software (calculations…
data errors
processing errors
incorrectly written software
calculations worked out wrong
should be spotted at the testing stage
an effective and thorough backup regime
data capture errors
entering current year as year of birth
prevent by well designed forms
data entry errors
when data is copied down incorrectly
prevent by using automatic data entry
barcode scanners
transpostion errors
mixing up the order of characters
use shorter codes
transmission errors
correctly entered data can become corrupted when it goes from one computer to another
poor connection
prevented by sending the same message back to the sender