On Wed, May 5, 2010 at 6:30 PM, Ulf Lamping <ulf.lamp...@googlemail.com> wrote: > >> http://img94.imageshack.us/img94/1179/amenity.gif > > You are asking for black and white definitions/decisions where there's > lot's of room for grey.
There's only "room for grey" (w.r.t. the OSM definitions) if we want there to be. > What about a place that serves limited breakfast in the morning, would > classify as a cafe throughout the day, serves full meals only at noon > and becomes a bar selling cocktails at night? You can still design a flowchart to cope with this as desired, with a bit of tweaking (e.g. "Can you expect a waiter to deliver your order to your table *at lunch and/or dinner time*?"). > What you just can't do is find a precise definition that is valid > throughout the world and will be doubtless in all possible situations. I am talking about a 'stipulative' definition (http://en.wikipedia.org/wiki/Definition). This definition cannot shown to be "valid" or "invalid" - it is simply either "useful" or "useless". To me, a useful definition for X is one that allows you to state whether something IS X OR IS NOT X, verifiably. That is, if I ask OSM to "find me a cafe", it would at least be nice to know how OSM defines a "cafe", even if (especially if!) this is different to my own subjective understanding of what a cafe is (this is incredibly obvious to me). I think I do understand your point, though, that you think it better to keep using these tags in a fuzzy, subjective, variable way throughout the world. To avoid going around in circles, maybe we can agree to disagree on that. > BTW: The flowchart is using highly subjective language > "heavily-advertised pseudo-food" which is *very* certainly not a good > way to find a concensus. Why does it try to offence junk food fans? Oh, > and the definition of "pseudo food" will very certainly differ between > people from the western world and people in africa starving right now. Hehe, this was a bit tongue-in-cheek, incorporating Greg Troxel's thoughts. Like I said, I'm happy to spend more time on the flowchart, and welcome suggestions to improve it - but only if there is demand for verifiable definitions. Otherwise, I won't bother. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
