Edward

Yes Wikidata has a mechanism for adding qualifiers and references to claims.

Where there are multiple values we can also mark one of them as preferred
and then simple queries will just get the preferred value.

For population figures each value would typically have qualifiers for
* Point in time (when the population figure applies)
* Determination method (census, estimate, whatever)
* Applies to part (total, black, white, christian, muslim etc.)
And each value would have a reference with the organisation, the url, the
date the info was published, the date the info was retrieved etc.

The most current total value would be marked as 'preferred'. Values which
are widely known but considered unreliable would be included but marked
'deprecated'.

All these properties have already been implemented and we are starting to
add them to items.

Hope this helps

Joe


On Mon, Jun 9, 2014 at 9:31 AM, rupert THURNER <[email protected]>
wrote:

> hi alex,
>
> i saw on
> https://www.wikidata.org/wiki/Wikidata:Property_proposal/Economics
> a hint to provide sample data. would it be not an option to provide a
> couple of data points to make the life of persons easier, instead of
> making them open links and tables?
>
> rupert
>
>
> On Mon, Jun 9, 2014 at 3:55 AM, Alex Peek <[email protected]> wrote:
> > We are a new project looking for volunteers.
> >
> > Project homepage:
> https://meta.wikimedia.org/wiki/The_Global_Economic_Map
> >
> > Thanks,
> >
> > Alex
> >
> > _______________________________________________
> > Wikidata-l mailing list
> > [email protected]
> > https://lists.wikimedia.org/mailman/listinfo/wikidata-l
> >
>
> _______________________________________________
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