On Wed, 23 Sep 2009 08:04:34 +0000 (UTC)
BlueMM <[email protected]> wrote:

> John Smith <deltafoxtrot...@...> writes:
> > 2009/9/23 BlueMM <bluemm1975-...@...>:
> > > I think the preferred attribution scheme is to use source=gps as that is 
> > > what the actual source is & survey is ambiguous with proper survey 
> > > equipment.
> > 
> > No, source=survey isn't ambiguous at all it's spelt out clearly on the
> > map features page:
> > 
> > http://wiki.openstreetmap.org/wiki/Map_Features#Annotation
> 
> "just because it's on the wiki..."
> 
> Seriously, I think most on this list know the wiki isn't some authority on 
> OSM,
> it's editable by anyone (even I added the source:name/ref tags to Map 
> Features).

The wiki has been that way from the almost the beginning (September 2006) in 
regards to source=survey

And we've been over this many times on the talk-au list that source=survey is 
correct for any survey where you actually go to the place you are mapping.

However I like what John put up:

>>> source=survey
>>> survey=gps
>>> gps=model....

as this then shows that you've gone and visited the place, checked it with gps, 
theodolite, etc and have surveyed it.

If you put the tag as source=gps how does any one know that it's actually from 
you having visited the location with a gps or just tracing someone elses gpx 
file upload.

> Anyway, back to the point, the source=survey issue was brought up a while ago 
> on
> Talk and a few contributors that I respect for their opinions said that
> source=gps would be better when collecting the data from GPS (presumably
> consumer grade GPS). I'd argue that source=survey is ambiguous because you 
> have
> to look up the definition to discover what it means. Imagine going up to a
> non-OSM user and asking them to guess what was used for collecting mapping 
> data
> when it is marked as source=survey. I envisage the day when more edits come 
> from
> new users than experienced contributors, especially as barriers are being
> reduced over time, therefore I think reducing ambiguities is important.

And they were only a vocal minority who suggested promoted this.  It would mean 
to a non-OSM user that someone physically visited the area and in some way 
mapped it. How they mapped it (gps, theodolite, compass and chain) is 
unimportant.
 

-- 
Cheers
Ross

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