GS1 Application Identifiers (AIs) are barcodes and EPC/RFID tags used to explain the format and content of data attributes. This tool is to assist GS1 application identifiers in various industries, for additional applications other than GTIN, including batch number, serial number, best expiration date and expiration date. At the same time, this tool is also available for general users, solution providers and GS1 member organizations to easily and quickly view, search and share application identifiers on web browsers, smartphones, tablets and other mobile devices Detailed data.