[Tagging] Meaning of check_date

[bkil]

I think if you search within the archives of this list, you will find
multiple threads with discussions in this topic. I think this is
debated at best. Just a quick example: what if a restaurant maintains
a website and I updated the opening ours, phone numbers, wifi or pet
policy based on that from an armchair, however I have not visited the
restaurant to see whether it is still accessible by wheelchair
(regressions can happen), whether it still offers outdoor seating and
some other tags from the dozens added to the given POI in the past
because it was not mentioned on the website?

On Mon, Aug 2, 2021 at 10:49 PM Raphael <dafadllyn at gmail.com> wrote:
>
> Dear fellow mappers,
>
> StreetComplete sets a check_date=* tag if a user answers a "Is this
> [feature] still here?" question with "yes". However, the wiki entry
> for check_date=* [1] says:
>
> > Date of latest review of the data [...] The tag is intended to document the last date, when an object as a whole or specific tags of the object were checked and verified. [...] To indicate the review of specific tags the key is built from multiple words separated by colons like check_date:collection_times=* or check_date:opening_hours=*. [...]
>
> It is clear to me that check_date=* means that all properties (or at
> least all that are verifiable on site) were checked on that date, not
> only its existence. Besides, there is no other tag with the meaning
> "everything last checked on" while there there are tags for "existence
> last checked on" and adding the same number of check_date:<property>
> tags as a feature has tags seems impractical.
>
> (For example, when used for a shop=* with opening_hours=* or an
> amenity=post_box with collection_times=*, i expect
> check_date=2021-07-31 to mean that it's opening hours or collection
> times, respectively, have been last checked on 31 July 2021 too, not
> only its existence, also because this information changes more often
> than its existence.)
>
> Therefore, i think that another tag should be used for the date on
> which a feature was last checked for existence. However, the developer
> of StreetComplete thinks that this is the meaning of check_date=*. [2]
>
> How do you understand check_date=*?
>
> (And if you think that check_date=* only means "existence last checked
> on", how would you tag "object as a whole last checked on"?)
>
> Best regards
>
> Raphael (dafadllyn)
>
> [1]: https://wiki.openstreetmap.org/wiki/Key:check_date
> [2]: https://github.com/streetcomplete/StreetComplete/issues/3110
>
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