Note / Reference
How to adress the spoor (not its observations)?
This picture refers to an option for spoor naming in the data model, when two observations have observed the same spoor.
Since there are no universal identifiers for footprints, the WissKI URI could be a solution. It doesn't contain any semantics. But for better visualisation and readability (semantic) Spoor IDs deriving from observations added one to another as in the pictogram are a reasonable solution. In the case 3 or more observations have taken place, this option might get too long.