Case studies Welcome to the central library for all GS1 case studies. Use search or filters to discover case studies related to specific topics such as benefit, industry, service, standard or location. Search Industry Retail Consumer packaged goods (CPG) Apparel Fresh foods Marketplaces Healthcare Transport & Logistics Technical Industries Foodservice (-) Public sector Region (-) Latin America Asia Pacific Middle East and Africa Country Brazil Benefits Data quality Operational efficiency Standards (-) GTIN GLN 1D barcodes 2D barcodes GS1 DataMatrix RFID Services Verified by GS1 GDSN Type of organisation Government (-) GTIN (-) Public sector (-) Latin America Clear all filters Showing 1 results Public sector Brazil’s Tax Administration knows the importance of valid product identification Using Verified by GS1 to authenticate the GS1 GTINs used to identify products on e-invoices, SEFAZ h...