Standardized characters of a symbol made up of a group of lines and spaces that can be recognized by an optical scanner. Bar codes uniquely identify article data, production numbers or transport units, for example. They can also contain additional information such as batch number, expiration date or weight.
Example
In the Logistics Execution System (LES), certain field entries can be represented by bar codes and printed on the transfer documents. This simplifies certain data entry processes such as order confirmation.