In my experience, the communications major opens the doors to creativity in a way that many other majors simply do not. On the other hand, what is required of communications majors in order to get ahead does not appear any different from what is required of those who are majoring in other fields:
A GTIN is a numeric data structure containing 8 digits, 12 digits, 13. digits, or 14-digits. It is recommended that GTINs are represented in software. applications as 14-digits by right justifying and zero filling left, as appropriate. The term trade item refers to any product or service upon which there is a need.
International Article Number. GTIN-13 number encoded in EAN-13 barcode. The first digit is always placed outside the symbol; additionally a right > indicator is used to indicate a Quiet Zone that is necessary for barcode scanners to work properly.