<div dir="auto">+1 for the not: namespace. It stops people inventing new negation tags with slightly different wording. Searches could take it into account even.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 14 Sep 2019, 07:25 Joseph Eisenberg, <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">"noname=yes" is used when a feature like a road doesn't have a name.<br>
<br>
The tag :not:name=XXX" is used when mappers might think that the name<br>
is actually "XXX" but it's not. Usually the "name=" field is already<br>
set with the correct name: 96% of objects with "not:name" have a<br>
"name=*" - see <a href="https://taginfo.openstreetmap.org/keys/not%3Aname#combinations" rel="noreferrer noreferrer" target="_blank">https://taginfo.openstreetmap.org/keys/not%3Aname#combinations</a><br>
<br>
The tag "not:brand" or "not:brand:wikidata:" tags would be similar,<br>
they would be added so that mappers and database users do not<br>
accidentally think that the amenity=restaurant with name="Phở Hòa" is<br>
the same as other restaurants with brand=Phở Hòa<br>
<br>
I suppose the alternative is using a "note" or "description", but this<br>
tag would be more specific and easier for software to handle, like<br>
<a href="https://github.com/osmlab/name-suggestion-index" rel="noreferrer noreferrer" target="_blank">https://github.com/osmlab/name-suggestion-index</a> - which helps link<br>
names with brands.<br>
<br>
- Joseph Eisenberg<br>
<br>
On 9/14/19, Francesco Ansanelli <<a href="mailto:francians@gmail.com" target="_blank" rel="noreferrer">francians@gmail.com</a>> wrote:<br>
> Hello Joseph,<br>
><br>
> I have to say that I'm not a fan of the tag, IMHO negation is something<br>
> that will make harder to do searches...<br>
> If the burger king is not the food chain keep the brand empty and write a<br>
> note or do a Wikipedia page about it, probably an historical activity<br>
> deserve it.<br>
><br>
> About the no name, this already exists:<br>
><br>
> <a href="https://wiki.openstreetmap.org/wiki/Key:noname" rel="noreferrer noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Key:noname</a><br>
><br>
> Can you please point out why adopt the new syntax instead?<br>
><br>
> Cheers,<br>
> Francesco<br>
><br>
> Il sab 14 set 2019, 06:43 Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com" target="_blank" rel="noreferrer">joseph.eisenberg@gmail.com</a>> ha<br>
> scritto:<br>
><br>
>> There's a new-ish page about the prefix "not:"<br>
>><br>
>> <a href="https://wiki.openstreetmap.org/wiki/Key:not" rel="noreferrer noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Key:not</a>:<br>
>><br>
>> It's been used with "not:name" to show that a street isn't named<br>
>> something else (e.g. for streets that had the wrong name on official<br>
>> OS maps in Britain): <a href="https://wiki.openstreetmap.org/wiki/Key:not:name" rel="noreferrer noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Key:not:name</a><br>
>><br>
>> Also it's been used with "not:addr:postcode" -<br>
>> <a href="https://taginfo.openstreetmap.org/keys/?key=not%3Aaddr%3Apostcode" rel="noreferrer noreferrer" target="_blank">https://taginfo.openstreetmap.org/keys/?key=not%3Aaddr%3Apostcode</a><br>
>><br>
>> Recently there was a suggestion to use "not:brand" and<br>
>> "not:brand:wikidata" to show that a feature is not part of a chain.<br>
>> <a href="https://github.com/openstreetmap/iD/issues/6577" rel="noreferrer noreferrer" target="_blank">https://github.com/openstreetmap/iD/issues/6577</a><br>
>><br>
>> For example, this can be used to tag the "Burger King" fast food<br>
>> restaurant in Illinois that's older than the international brand with<br>
>> the same name. This would help database users distinguish between<br>
>> places like this and the usual, popular brand, when doing searches or<br>
>> validating data.<br>
>><br>
>> Does anyone see a problem with this?<br>
>><br>
>> What about "not:name"? There's also a discussion about using that tag<br>
>> to check for mistakes, like when new mappers keep changing the name of<br>
>> a feature due to a misspelled or hard-to-read sign:<br>
>> <a href="https://github.com/openstreetmap/iD/issues/6411" rel="noreferrer noreferrer" target="_blank">https://github.com/openstreetmap/iD/issues/6411</a><br>
>><br>
>> -Joseph<br>
>><br>
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>><br>
><br>
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</blockquote></div>