[OSM-talk] Release openstreetmap-carto v2.36.0

[Colin Smale]

On 2015-11-02 11:26, Martin Koppenhoefer wrote: 

> 2015-11-02 11:16 GMT+01:00 Colin Smale <colin.smale at xs4all.nl>:
> 
>> The second issue is that the value part of the KVP is redundant - the presence of the key is enough.
> 
> not if you consider values like "no" and "only".

The "no" would be indicated by the absence of the tag (we are not going
to add a sells:*=no for everything it doesn't sell, are we?) 
The "only" would be indicated by the absence of any other sells:*=* tag 

>> I have an instinctive aversion to modelling multiple values (the real-world situation) onto multiple keys in OSM. It "fixes" the problem in the wrong place, and really just moves the problem.
> 
> I agree that this is not a general solution, it is OK (IMHO) for some edge cases, stuff you consider important enough to be mapped singularly (personal preferences might vary, some stuff like ice cream, tobacco, postal stamps, transport tickets, etc. come to mind, i.e. stuff that a group of people cares for and where availabillity differs a lot between countries and shops).

This is where the skill/craft/science of information modelling comes in
handy. The extremes are shop=yes on the one hand and detailed tagging of
every product it sells on the other hand. Neither extreme is
useful/usable; somewhere in the middle we need to find a balance. The
amount of discussion about pharmacy/chemist/drugstore indicates some
refactoring may provide a way forward. Hence my suggestion of going one
level deeper and tagging the product groups/classes/categories they
sell. 

A renderer/data consumer can make their own conclusion about what to
call a place that only sells non-prescription medicines plus household
cleaning stuff. Some may call it a drugstore, others may call it a
chemist, it doesn't matter - the shop and its products are not under
discussion, just what to call it in one particular case. 

Once upon a time we might have got away with simply using English (as
opposed to US English) as a frame of reference for tagging, but that's a
hard pill to swallow (sorry) for most of the world. 

//colin 

> Cheers, 
> Martin
 
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