Matthias Julius wrote: > What is the definition of a category here? > > I would call a category something like "buildings that are 29 strories > tall". An architect I would call an (abstract) object that can have > other attributes as well like a birthdate, an email address and so > on. (Whether all this belongs into OSM is another debate). >
It may well be an abstract object, but it's not a geographical one so it doesn't belong in OSM. Relations are a way of linking one geographical feature to another for some geographical reason -- part of the same long-distance route, or opposite banks of a waterway for example. In this case there's no geographical link between two buildings from the same architect -- you could just as easily say that all buildings belonging to one company should be part of a relation, but that too would essentially be categorisation. Jono. _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
