[Tagging] Source tag - deprecated for use on objects?

Martin Koppenhoefer dieterdreist at gmail.com
Thu Jan 3 10:42:46 GMT 2013

2013/1/3 Georg Feddern <osm at bavarianmallet.de>:
> Am 02.01.2013 18:16, schrieb Martin Koppenhoefer:
>> +1, the smaller (and more sorted by kind of change action) changesets
>> get, the better the chance that the following mapping will understand
>> easily what it is about. There is really no point in grouping
>> different kinds of edits in the same set of changes, just because you
>> happen to do them at the same time.
> Sometimes I see e.g. a restaurant just by driving by.
> Mapping at home
> - I draw a building outline from Bing
> - add amenity and name from survey
> - add address info from internet research (depending on my own memory)
> And you really think I will add that in 3 (three!) different changesets?

nah, I'd tag this "details from survey and web research and tracing
from bing aerial imagery"
What I meant (because I saw this often looking at changesets): people
adding a POI here and another one 50km away and another street 20km
away. Why not have this uploaded in different changesets? When you
have 1 object (restaurant in your example) in one changeset I'd
consider this "sufficiently atomic".

Another issue are huge changesets with thousands of objects. They will
almost never be clear to another mapper looking at them, already for
the size, and they will also most probably produce conflicts in the
case you'd want to revert them.

IMHO it doesn't matter so much where the building outline comes from
for example, either it is good, than you won't touch it, or it is not
correct or it's inaccurate and you'd modify it to make it better. It's
never a question where it comes from, but always how well it was done
and whether it is still describing the current situation.


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