[Tagging] [OSM-talk-be] generalized survey : proposed wiki update

André Pirard A.Pirard.Papou at gmail.com
Sat Jun 14 17:03:37 UTC 2014


Hi,

Following this discussion here is a proposed clarification to Key:source
<http://wiki.openstreetmap.org/wiki/Key:source>.
The goal is to define the word, make date mandatory, use ISO format,
define per source tag meaning.
Is there any objection or suggestion for changes?

*survey* yyyy-mm[-dd] (with one blank and an /ISO/ 8601
<http://www.google.be/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&sqi=2&ved=0CDAQFjAC&url=http%3A%2F%2Fwww.iso.org%2Fiso%2Ffr%2Fhome%2Fstandards%2Fiso8601.htm&ei=X3qZU_CEPNHR4QT34YGwCg&usg=AFQjCNHMm5_cA8CzTjEvrWYQc5GZ9K1wLg&sig2=m6xdSXuaBGqt6Qlj0tCfTw&bvm=bv.68911936,d.bGE>
format date) can be used within the data of any source.KEY=* or source=*
tag to indicate that, on that date, the source(s) of KEY were the most
recent and the data was verified to be correct for that KEY. In
source=*,  survey means the same for all possible (required) keys (even
those absent by default), but it can be overridden by survey in some
source.KEY tags. survey helps to avoid making already done
verifications, especially because a source publication date is not a
verification date. survey can contain the date of dateless sources like
visual or knowledge. It can help humanly assisted bulk imports. Please
update the survey date of what you verify (a substantial time later),
even if you don't add survey dates yourself.

Suppose an *.osm file is built from an imported source.  The map
contributors are requested to move/update  the map elements to osm.org
after verifications such as coordinates.  If the *.osm map elements
contain a survey value such as source=survey <import-date>, then a
program can find out by checking for an equal or later survey date what
map elements have been moved/updated to osm.org and hence build a
remaining.osm file containing what remains to be done.  A FIXME can be
added at import time to already existing osm.org elements to warn about
the ongoing import.

Cheers,

André.



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