Definitions for "Self-Checking"
Ability of a symbology to guard against undetected errors.
A symbology is termed self-checking if a single printing defect will not cause a character to be transposed into another valid character in the same symbology.
A bar code with a checking algorithm that can be independently applied to each character to guard against undetected errors.
A control circuit that periodically performs tests on itself to assure correct functionality.