[Tagging] Tagging standards using url:

[Martin Koppenhoefer]

Am Fr., 17. Dez. 2021 um 10:34 Uhr schrieb Martino Scaglione via Tagging <
tagging at openstreetmap.org>:

> Hello everyone. In the former weeks I've created some tags in the form of
> suffixes for the tag url:, like url:chiese_italiane,
> url:anagrafe_biblioteche_italiane, to indicate that the url goes to a site
> related to that feature for which I am inserting the tag, called Chiese
> Italiane or Anagrafe delle Biblioteche Italiane (These words mean
> respectively Italian Churches and Register office of Italian Libraries).
> Some users think this use of the tag is inappropriate since it creates
> confusion and in their words would be useless.
> https://www.openstreetmap.org/changeset/114830660
> This is a changeset discussion on the topic (you can simply use a
> translate software)
> I thought I'd bring the matter here because it's not specifically an
> italian problem, since we are talking about creating a tag suffix to url:
> for each site has a page completely dedicated to a feature (not including
> newspaper and magazines articles obviously), if we expand the reasoning
> behind the two examples that I made.
> What do you think?



generally we use British English for key identifiers and also for formal
values (those from a finite list, which represent a certain type of thing).
>From a semantic point of view, if the tags were in English, something like
"url:italian_churches=http://....." would not make sense to me (I would not
understand what is meant and would have to look it up in the wiki). It
seems as if "italian_churches" is one of possbily infinite values, rather
than a key, and should go somehow in the value side of things.

>From guessing it seems as if these are maybe official (or not) external
sources that are referred to?

For the "Anagrafe delle Biblioteche Italiane" I would expect a tag like
ref:<identifier anagrafe>=<number> or even <identifier anagrafe>=<number>
or ref=<number>
rather than a web address.

For churches, people are using "website" as a key, and in the value we put
the official website URL. The key "url" is described as being used for
additional URL besides the official / main / website.

Generally, all "url" (and all tags) should be related to the feature where
they are added on, and the tags on the feature describe what it is
representing, so adding this as a postfix to the url tag seems complicating
the tagging (and data evaluation) for no actual benefit.

Cheers,
Martin
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