What is the relationship between a GLN, GTIN® (e.g., U.P.C.) and GDSN®?
GLNs (Global Location Numbers) are GS1 standards-based identifiers used to identify locations, and GTINs (Global Trade Item Numbers) are GS1 standards-based identifiers used to identify trade items (products and services). Both are assigned/generated by companies based on their GS1 Company Prefix and the GS1 Standards and Allocation Rules. GS1 Identification Numbers provide the link between an object and the information pertaining to it. When users assign a GS1 Identification Number, they define a set of standardized information (known as attributes) about the object to which that identifier relates (e.g., size, weight, location). The GS1 System specifies the list of attributes that must be defined for each GS1 Identifier and provides a precise definition, as well as acceptable values and data formats for each attribute. Standardized attributes about products include core data-like selling units, item dimensions, and product classification. Once defined by the user, those attributes ar