The UPC-E barcode is a condensed version of its larger counterpart, the UPC-A, designed to save space without sacrificing information. It encodes a 12-digit number into a compact 6-digit code by compressing out unnecessary zeros, making it ideal for small items where a full UPC-A barcode would be too large.

The design of the UPC-E barcode includes a number system character, which is typically zero for regular UPC codes, and a check digit for data verification, although the check digit is not explicitly encoded in the UPC-E itself. Instead, it is derived from the check digit of the original UPC-A code.

The UPC-E can only encode numeric data, specifically the digits 0 through 9, and is structured to include a manufacturer code and a product code, which are assigned by the Uniform Code Council.

The manufacturer code is a unique identifier for the company producing the item, while the product code is unique to the specific item itself.

The UPC-E barcode's ability to condense information makes it a powerful tool for inventory management, retail checkout, and tracking consumer goods, particularly in environments where space is at a premium.

Its design reflects a careful balance between efficiency and the need for universal readability across different scanning technologies and systems.

The creation and printing of UPC-E barcodes are supported by various software development kits (SDKs) and applications, allowing for integration into a wide range of business processes and systems.

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As a result, the UPC-E barcode remains a vital component of modern commerce, facilitating the smooth operation of supply chains and retail operations worldwide.