Hi, I wonder if this phrase without an explanation link <http://wiki.openstreetmap.org/wiki/Key:source> contains appropriate instructions (or just press news): > *Since the introduction of changesets these tags are often added as > changeset <http://wiki.openstreetmap.org/wiki/Changeset> tags rather > than in the features themselves.* It sounds like ("rather than") source tags in objects must now be replaced by source tags in changesets. While doing so may be appropriate to for huge bulk imports, I don't think it's always, even generally, the case.
Suppose an osm file built from version 2014_04 of BusCo bus stops data. The OSM contributors are invited to copy each object to OSM and to check the data, esp. coordinates. Should: * this file's objects contain source=BusCo 2014-04 (ISO date) * or the contributor be requested to add that tag to the changesets for each and every update In the first case, the tagging will be done without mistakes and the source will be very apparent on the main OSM Web map not only for the reader to see but also for overpass to filter which data belongs to BusCo and even which is not yet at the latest update. In the mistake prone, second case, the mapper will be asked to force himself in different updates for BusCo and for other necessary updates that he will inevitably meet in the process, and the net result of that hassle will be a misplaced source tag with regard to visibility and overpass. Which is the best method? Or is there another one? I think that changeset source tagging is only appropriate to mechanical imports and that the above phrase should say so or link to some reading that does. It seems strange to have to split updates one per object so that the correct source tags are present on each when they could equivalently and more appropriately be on the object itself. Typical, compared to the variety of object source tags format, is this scarce instruction in changeset <http://wiki.openstreetmap.org/wiki/Changeset>: > > * source <http://wiki.openstreetmap.org/wiki/Key:source>=* – specify > the source for a group of edits > Typically, "source for" does not say "source of" what. Of the objects or of the edits as a whole import? Cheers, André.
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