[Tagging] source tag on object <> changeset

Eric Gillet gill3t.3ric+osm at gmail.com
Sun Jul 23 00:13:36 UTC 2017

On Sun, Jul 23, 2017 at 12:09 AM, marc marc <marc_marc_irc at hotmail.com>

>  > On Sat, Jul 22, 2017 at 08:51:16PM +0200, Simon Poole wrote:
>  >> a) good practice to tag source on the changeset.
>  > I always include a fairly comprehensive list
>  > of sources on changesets, but *need* individual source tags
>  > on objects. Otherwise, subsequent mappers come along with
>  > far inferior information and wipe out my many hours/days/years of
>  > careful work on the ground.
> This problem exists for any tag. Where does the localization for a
> crossing come from? Gps / aerial? What is the date of this ?
> I don't imagine that we triple all the tag to have source+date just in
> case someone doesn't read changesets when he thinks that an object needs
> improvement.
> If he doesn't read changesets, will he pay attention to your source tag?
> In my edit, I delete often previous source tag.
> Because if I modify an object after survey, a previous source=bing for
> example on an object no longer say anything usefull.
> I don't add source tag on object for the same reason.
> What would be useful is to have a link beside each tag indicating the
> last changeset that touched it.
> Or maybe a josm plugin can parse the history of the object

I recently had the same discussion regarding a Mapillary blog post
and completely agree on the points you (Marc) raised.
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