On Thu, Aug 4, 2011 at 4:36 AM, Gregor Horvath <gre...@ediwo.com> wrote: > ** re-mapping of stuff in the course of the license change > - re-structuring of relations > - 0.7 area data type (lots of existing areas get a new ID) > > superseded_by tag
That's an interesting use case - let's say A describes a certain building, and is deleted (the author didn't agree to CTs), and then B describes the same building. You want to be careful about linking B to A, lets B be considered a derivative work... In general I think there's some value in what you're describing here, not just for id stability, but in better understanding the history and provenance of objects, which helps with attributing authorship. Some sort of more generic meta-tagging scheme might be good (superseded_by could easily be interpreted as referring to the actual physical objects, not the OSM objects), so maybe something like osm:new_id=xxx, osm:merge_into=xxx etc. Steve _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
