On Sat, Apr 4, 2015 at 6:14 AM, Volker Schmidt <vosc...@gmail.com> wrote:
> I am much more worried about imports for a completely different reason, > and that is data maintenance.... > If the external data were not imported, but kept in a separate > external-data layer, the situation could be different, because you would > have the option to refresh the external data form time to time. But this is > not the data model of OSM. > *Not necessarily true*: I run several ongoing synchronization scripts. These keep OSM in sync with a commercial dataset. The longest running is for car sharing: data from the reservation system is compared to OSM. OSM mapper additions are respected. But if the car is removed by the operator, it's deleted from OSM. And this is a two way ongoing import: http://wiki.openstreetmap.org/wiki/Import/Dero_Bike_Repair Improvements on either side flow to the other (except in the UK, due to community preferences regarding imports).
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