The data protocol used to exchange information in a radio frequency identification (RFID) system for item management is specified in ISO/IEC 15961 and in ISO/IEC 15962:2013. Both International Standards are required for a complete understanding of the data protocol in its entirety, but each focuses on one particular interface:

* ISO/IEC 15961 addresses the interface with the application system.

* ISO/IEC 15962:2013 deals with the processing of data and its presentation to the RF tag, and the initial processing of data captured from the RF tag.

ISO/IEC 15962:2013 focuses on encoding the transfer syntax, as defined in ISO/IEC 15961 according to the application commands defined in ISO/IEC 15961. The encodation is in a Logical Memory as a software analogue of the physical memory of the RFID tag being addressed by the interrogator.

ISO/IEC 15962:2013

* defines the encoded structure of object identifiers,

* specifies the data compaction rules that apply to the encoded data,

* specifies a Precursor for encoding syntax features efficiently,

* specifies formatting rules for the data, e.g. depending on whether a directory is used or not,

* defines how application commands, e.g. to lock data, are transferred to the Tag Driver,

* specifies processes associated with sensory information and the transfers to the Tag Driver,

* defines other communication to the application.