On 23.07.2015 01:06, Federico Leva (Nemo) wrote: One point to consider is that editing existing statement values is very often not what you want. For example, if the mayor of a town changes, one should create a new statement for the new mayor with a correct start date (and reference), update the old mayorship to have an end date, modify the ranks so that the new current mayor is preferred now, and possibly even update the references for the old mayor (because references that confirmed the old claim may only talk about the start of the mayorship, not about the end). On the other hand, if new results change the expected age of the universe, this does not mean that the old value should get an "end date" and be kept as a "normal rank" value; in this case the value should really be changed, but the references will also need to be changed. I could imagine a kind of Javascript "statement update wizard" that makes such typical update workflows very easy for users. But the first step to making this feasible will be to understand which properties in Wikidata should be updated in which ways. Markus

On 2015-07-23 13:20, Federico Leva (Nemo) wrote: And we indeed already had Russian Wikipedia users claiming that since they use Wikidata in their templates and they are not willing to amend templates, we should amend Wikidata and add whatever redundant statements they need for the templates. Cheers Yaroslav