[OSM-talk] Ground truth for non-physical objects

Martin Koppenhoefer dieterdreist at gmail.com
Mon Dec 17 08:57:45 UTC 2018

Am Sa., 15. Dez. 2018 um 16:09 Uhr schrieb Colin Smale <
colin.smale at xs4all.nl>:

> "without access to the same sources" ... what if there is only one source
> of truth? With these non-observable items like admin boundaries that is
> often the case.

for admin boundaries there will often be at least 2 "true" document
sources: one for each party / side. They are also often observable, at
least punctually.

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