2016-03-07 7:50 GMT+01:00 Warin <61sundow...@gmail.com>: > For example at present a mapper adding tags to a sewing shop that sells > sewing machines can have > > paff=yes ... that makes no sense unless you know Paff make sewing > machines. > > gutenberg=yes ... makes no sense unless you know they make thread... but > it is also a project for copyright free books ... > > husqvarna=yes ... makes both motorcycles and sewing machines ... does this > mean both are sold here? > >
this kind of tag is quite bad I think, because it doesn't convey a meaning in a semantic sense. They don't say what "pfaff=yes" means, and there can easily be cases of ambiguity because they are too short / universal in meaning. Better use brand=Pfaff so you know at least that "Pfaff" is a brand (even if you don't know them) and not a means of transport, an access restriction or a shop type, or whatever. You have asked about the property "sells=motorcycle;yamaha" on a shop=motorcycle. My stance is that this would better be tagged as "brand=Yamaha". "sells=motorcycle;yamaha" doesn't make much sense to me (they sell motorcycles and yamahas?). I would only use this in case it is an authorized dealer (or in other words: you can see from the outside that this is a Yamaha shop, it has a sign written "Yamaha" on it, people can use this information to recognize the shop, etc.). Cheers, Martin
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