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.
Today, five symbologies support this GTIN data structure: UPC; EAN; ITF-14; UCC/EAN Code 128; and GS1 Databar (formerly Reduced Space Symbology). Of these, ITF-14, GS1-128, and GS1 Databar employ 14-digit data structures of which the 14th character is a packaging level indicator (i.e., item or case).