This document focuses on the abstract interface between an application and the data processor and includes the specification and definition of application commands and responses. It allows data and commands to be specified in a standardised way, independent of the ISO/IEC 18000 series air interfaces.d edition 2021-12 Information technology — Data protocol for radio frequency identification (RFID) for item management — Part 1: Application interface Technologies de l'information — Protocole de données relatif à l'identification par radiofréquence (RFID) pour la gestion d'objets — Partie 1: Interface d'application Reference number ISO/IEC 15961-1:2021(E) ？ ISO/IEC 2021 ISO/IEC 15961-1:2021<