[Tagging] Refining heritage tag

[António Madeira]

Às 10:15 de 14/04/2020, Paul Allen escreveu:
> On Tue, 14 Apr 2020 at 04:33, António Madeira via Tagging
> <tagging at openstreetmap.org <mailto:tagging at openstreetmap.org>> wrote:
>
>     - is ref:xxx=* a good solution to add the official reference
>     code/number?
>
>
> No.  But that's what we have.  With hindsight we'd have done it
> differently.  But
> it's now been used so often it would be very difficult to fix all the
> existing uses.
>
> More importantly, heritage/historic tagging was started by the
> Historic Place
> project and they're the only ones (that I know of) that make use of
> those tags.
> They're the ones you'd have to convince to alter their code to handle your
> proposed change.

You mean this?
https://wiki.openstreetmap.org/wiki/Open_Historical_Map


>     - we've adopted the tag protection_title=* to define the
>     protection category of the heritage, although the German wiki
>     clearly states this is used for natural areas only. Would it be
>     better to create another tag or is OK to adapt this one, since
>     this is also a protected feature?
>
> It's a protected feature but not a protected natural area.  The wiki page
> for it says it requires boundary=national_park or
> boundary=protected_area so
> it shouldn't be used this way.  That said, other people have used it
> that way.
> Would xxx:criteria fit your usage?

The "problem" with criteria is that it seems to be used with numbers or
abbreviations, like a list that corresponds to some longer definitions.
For example: we could create a criteria list with 1, 2, 3, 4 which would
correspond to the 4 levels of heritage existing in Portugal, but how
would data consumers know what those numbers mean? Or if you use
abbreviations, like MN, IIP, etc. we would have the same problem.
The protection_title=* seemed to solve that, but it's not 100% accurate.
I don't want to use it if it's not correct, so maybe we could create
something like heritage:designation=* which would go in line with the
heritage scheme.



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