[OSM-talk] immutable=yes Fwd: DEC Lands

Ulf Lamping ulf.lamping at googlemail.com
Mon Mar 9 20:42:51 GMT 2009


80n schrieb:
> 
> The problem with GPS toting mappers is that they will often believe 
> their GPS tracks are at least as accurate as those used for all the 
> other data in OSM, so there's a strong temptation to move things around 
> a bit based on the information they have to hand - I know, I've done it.

;-)


A bit of a skeptical view about your own GPS data accuracy is *always* a 
good idea, no doubt about that :-)

> What's needed here is not an immutable=yes tag but rather a couple of 
> tags source=DEC and accuracy=definitive which will give GPS toting 
> mappers the information they need to know that the data in OSM is likely 
> to be more accurate that their GPS.  They can then take an informed view 
> about whether or not to mess with it.

Sounds like a good approach. Having something like "You are about to 
edit data that is probably more accurate (<Xm) than what you can achieve 
with common GPS equipment. Are you really sure you want to change this?"

However, I don't know if the editors will implement something like this 
anytime soon ...

Regards, ULFL





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