On 13/12/2018 10:40, Tomas Straupis wrote:
What is "ground" in this term for non physical objects: 1. Physical place which could have some traces of an actual object. 2. Ground where non-physical objects actually live - documents.
The whole point of the "verifiability" and "ground truth" principles is so as _not_ to have to rely on documents. If I want to find the border between Ireland and Northern Ireland, for example, I might not (yet) find anything stopping me driving through but I will see something along the lines of "speed limits now in mph" or the reverse. Reliance on non-physical objects is only necessary where you really can't see something on the ground (such as the border between lower and upper Rossnowlagh at https://www.openstreetmap.org/#map=13/54.5702/-8.2369 ). The fact that we can't get some boundaries from an on the ground survey doesn't mean that we have to rely on "documents" for all of them, and for a good reason - "documents" often contradict each other, even from the same organisation.
Best Regards, Andy _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
