[OSM-talk] Tag for true OSM data?

[SomeoneElse]

On 31/03/2011 10:20, Ed Avis wrote:
> I think you can assume that if no 'source' tag is set, the feature is done by
> traditional OSM mapping (survey, or GPS trace, or local knowledge, or perhaps
> tracing from aerial imagery).
>
Sometimes it's really useful to tell the difference between those 
options, though - I'd certainly appreciate 
source=whatever_seems_most_relevant even if someone's made the best use 
of all the (non-import) sources available.

Cheers,
Andy