[Tagging] Feature Proposal - RFC - changing table

[Warin]

On 20/05/19 22:20, Valor Naram wrote:
> then it's a property

Yes.

The tag highway=residential says that is a road here,  a physical presence.

The tag surface=grass says that whatever is here has a grass surface, 
but does not say what the physical presence is.

If there is a thing tagged with both highway=residential and 
surface=grass then it says there is a road with a grass surface.

For change tables they would commonly be combined with toilets, possibly 
other things too like libraries, community halls, camp sites etc.

So the description of surface does not say what the physical presence 
is, nor should change table. For change table it is the provision of the 
activity.

>
>
> -------- Original Message --------
> Subject: Re: [Tagging] Feature Proposal - RFC - changing table
> From: Martin Koppenhoefer
> To: "Tag discussion, strategy and related tools"
> CC:
>
>
>
>     Am Mo., 20. Mai 2019 um 12:36 Uhr schrieb Valor Naram
>     <valinora at gmx.net <mailto:valinora at gmx.net>>:
>
>         > [...] so if you intend to replace this, yours would likely
>         become a property (only) as well
>         Ok. Does it matter? From what I understood so far most wiki
>         pages describe `properties` e.g.: Key `highway`
>
>
>
>     the difference of a feature and a property is that a property
>     cannot be tagged alone, it requires a feature (e.g. "surface", or
>     "oneway", or "height"). On the other hand, a feature is defining a
>     "thing", e.g. a highway defined through the tag "highway". It is
>     not a property, but a feature (and the values are different
>     "classes" of this feature).
>
>     OSM does actually not explicitly make this distinction (AFAIK),
>     but it is implicit in how people are using the tags.
>
>     Cheers,
>     Martin
>
>
>
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20190521/98e1c486/attachment-0001.html>