3.2.4 SourceId
| Describes the unique identifier that indicates the origin of the positioning data, such as the Zone of an RTLS or self-localizing device that computed the position. Note: The SourceId may represent either a Zone identifier or the unique identifier of a device (e.g. a GPS tracker). EXAMPLE 1: | An identifier for a GPS device generating global position data. EXAMPLE 2: A reference to the Zone of an RTLS system providing the location. |