[Talk-GB] [OSM-talk] Improving ref=* documentation

[Colin Smale]

>     On 08/06/2021 12:20 PM Mateusz Konieczny via Talk-GB <talk-gb at openstreetmap.org> wrote:
>     Aug 6, 2021, 12:13 by colin.smale at xs4all.nl:
> 
>         > > 
> >             > > >             On 08/06/2021 11:23 AM David Woolley <forums at david-woolley.me.uk> wrote:
> > > 
> > > 
> > >             On 06/08/2021 06:57, Jay Turner wrote:
> > >             > Perhaps "ref:signed=poorly"?
> > >             >
> > > 
> > >             That's subjective and OSM doesn't collect subjective information.
> > > 
> > >         > > 
> >         Ahem... There are plenty of examples of (partially) subjective information in OSM. Tracktype and smoothness for example. Even highway=* gives rise to discussion from time to time, as one mapper's judgement differs from another mapper's. Only by reference to an authoritative source can all elements of personal judgement be eliminated from the equation.
> > 
> >     >     And even then we would run into problems as soon as there is more than one
>     "authoritative source".
> 

There cannot be more than one "authoritative source" by definition.

There can be indirectly authoritative sources, which are individually derived from the authoritative source and can potentially disagree with each other, as a consequence of a mistake or temporal considerations (update date/frequency etc). Such apparent conflicts can be resolved by reference to the authoritative source itself.
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