All UIDs should be both validated and verified. Easy to say - right, but what exactly does that mean? Is there a difference? What comes first? These two components sound very similar, but in actuality mean very different things. 
Validation refers to the elements contained within the 2D bar code for UID. For example, are the correct data identifiers used (i.e. 17V, CAG, etc.)? Do the separate elements have the correct number of characters (i.e. Cage Code)? Are there any illegal characters being used? Validation occurs when the UID is constructed or concatenated and special UID software must be used in order to "validate" the information.
Verification, on the other hand, refers to the quality of the actual 2D symbol. Does the bar code even read? Does the 2D bar code meet the required print standards for the respective type of marking (i.e. labels, nameplates, DPM)? Regardless of whether the bar code contains UID information or not the bar code should be verified to ensure the customer will be able to read the information.Labels: uid, uid labels, uid tags
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