Tuesday, February 18, 2014

#Wikidata - about #values

When you edit in Wikidata, there are these icons to the right and left. They are rarely used but they are there for a reason.

Consider for instance a gentleman who is known to have lived in the year 1751. With certainty we know that he died. It is appropriate to add the "unknown value" for everyone who was born in excess of 120 years ago for their "date of death".

Indicating "no value" is relevant when something is explicitly known to not exist and for it to be relevant.

Adding such values become relevant when Wikidata or Reasonator prompt you to add values for properties that are considered to be important. Indicating that there is "no value" or an "unknown value" will ensure that the tool is satisfied that there is a value even when there is not.
Thanks,
      GerardM
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