[Tagging] Deprecation reasons - RFC

[Florian LAINEZ]

Hi,
Thanks for your replies.
Frederik I think we should really differentiate the concepts: 1. the
definition of deprecation and 2. the legitimacy of the community to decide
and enforce a deprecation.

1. The deprecation definition is currently formalized and well described
<https://wiki.openstreetmap.org/wiki/Deprecated_features>: "A deprecated
tag or deprecated feature is tagging that is recommended by OpenStreetMap
community consensus for removal and replacement with other tagging."
Therefore I don't understand when you say that "it's not a formal concept".
I don't aim to change that definition at all. My only proposal is to better
define the reasons behind a deprecation.

2. The legitimacy of the community to deprecate: my proposal does not aim
to change in any way the deprecation process. I agree with you that the
community has only the authority to recommend / disrecommand the use of a
tag.
Therefore I changed the wording of my proposal to comply. In particular, I
replaced "good and bad tag" to "recommended and not recommended tag".

I am not sure what the problem is that this proposal is trying to solve.
>
As I said,, the current deprecated features table
<https://wiki.openstreetmap.org/wiki/Deprecated_features#Deprecated_features>
is messy and hard to understand.
The main reason for reviewing it is the ability to understand rapidly and
without effort the reason(s) of the deprecation for a specific tag. At the
moment of the deprecation, the reason could seem obvious, but for other
persons, years later, without the context, it could be very hard to
retrieve it.
And yes, of course, explaining the reasons could lead to discussions about
the validity of the deprecation. It could even lead to a formal proposal
for some exceptions. In my point of view it's a good thing that we bring
some transparency.
Also, follow-up more closely the reasons of past deprecation could help us
to better understand this process and help to prioritize the effort of the
community for tag standardization (tag creation, documentation writing, ...)
I added these reasons into the proposal.

Le lun. 24 janv. 2022 à 20:15, Brian M. Sperlongano <zelonewolf at gmail.com>
a écrit :

> On Mon, Jan 24, 2022 at 12:49 PM Florian LAINEZ <winnerflo at free.fr> wrote:
>
>> Hi, I propose to clarify the reasons why a tag is deprecated :
>> https://wiki.openstreetmap.org/wiki/Proposed_features/clarify_deprecation_reasons
>>
>
> When we say "deprecated" in OSM terms, this translates in reality to
> "described as deprecated in the wiki, perhaps with a recommendation to use
> a different tagging instead".  Sometimes these deprecations come about as
> changes to the wiki resulting from proposals, and sometimes they are simply
> the outcome of the wiki gardeners documenting de facto cases of obvious
> tagging mistakes or taggings that are no longer meaningfully in use.
>
> I am not sure what the problem is that this proposal is trying to solve.
> If someone wishes to categorize the reasons for which tags become labeled
> as deprecated on the wiki, that sounds like an academic exercise rather
> than a topic for proposal and vote.
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-- 

*Florian Lainez*
@overflorian <http://twitter.com/overflorian>
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