On Tue, Oct 14, 2008 at 9:04 AM, maning sambale <[EMAIL PROTECTED]> wrote: > Hi, > > What's the good practice for updating the source tag? > For example in my mapping area, the initial coastline was from an SRTM > import (source=SRTM), then somebody updated the coast using LANDSAT, > then another user updated it using Yahoo!. > > I would very much like to preserve the original tag as it provides > some history on the development of the data, but the data have been > greatly modified that it does not in anyway similar to the original > coastline import. >
If you entirely move something to match another source then just replace the tag. If I modify something with reference to another source, but still trying to take into account the original then I tend to add the source to the tag, so source=SRTM+landsat or similar. (sometimes I just forget it completely) The way/node history on the OSM server takes care of preserving the origins, so anybody who's interested can look back through it. Dave _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk