This is a "one-dimensional" (1D) barcode symbology used in retail all over the world.
The EAN/UPC family of symbols consists of the first and most widely deployed GS1 barcodes. EAN/UPC barcodes are suitable for retail point-of-sale (POS) because they are designed for high-volume scanning environments. Applications are limited to GTIN, coupons, and in-store codes.
These barcodes are also applied in general distribution and logistics environments. EAN/UPC minimal sizes are increased when they must be scanned at both retail POS and in general distribution.
View EAN/UPC Chart
This 1D barcode can accommodate additional product attributes such as fresh food weight.
The GS1 DataBar family consists of seven types of barcodes. Four of these barcodes can be scanned at retail, two of which are able to carry additional information such as a serial number, lot number or expiry date. GS1 DataBar is also applied in general distribution and logistics environments.
View GS1 DataBar Chart
GS1-128 and ITF-14
GS1-128 and ITF-14 (Legacy term: Interleaved 2 of 5) barcode symbols are only applied in general distribution and logistics environments, and NOT applied in retail. GS1-128 barcodes can carry all GS1 Identification keys and attributes, while ITF-14 barcodes can only carry the GTIN.
If a barcode containing only the GTIN needs to be printed directly on a corrugated box, then the ITF-14 barcode symbology is often used as it is easier to print, and the required barcode quality grade is less strict.
View GS1-128 and ITF-14 Chart