The ISO 17572 series specifies two different LRMs:
-pre-coded location references (pre-coded profile);
-dynamic location references (dynamic profile).
The ISO 17572 series does not define a physical format for implementing the LRM. However, the requirements for physical formats are defined.
ISO 17572-3:2014 does not define details of the location referencing system (LRS), i.e. how the LRMs are to be implemented in software, hardware, or processes.
ISO 17572-3:2014 specifies the dynamic location referencing method, comprising
-attributes and encoding rules;
-logical data modelling;
-TPEG physical format specification for dynamic location references;
-coding guidelines for dynamic location references;
-compressed data format specification.