On 21 February 2018 at 09:57, Antonin Delpeuch (lists) lists@antonin.delpeuch.eu wrote:
On 20/02/2018 19:49, Andy Mabbett wrote:
this query:
returns over 5000 instances/ subclasses of "unique identifier" (Q6545185) but includes both /types/ of identifiers (like the example above) and individual identifier values, like ".ar" as an internet TLD (domain name itself - Q32635 - is a subclass, not an instance, of UID)
- how should we distinguish between the two classes?
I think I would just change the ontology: "domain name" (Q32635) should not be a subclass of "unique identifier" (Q6545185), but rather an instance of it.
I've done that; but it has only reduced the number of results to 3,456 - what else needs changing?
Consider, for instance:
https://www.wikidata.org/wiki/Q3596440
an "instance of" a "telephone numbering plan" (Q103903)
(Actually the uniqueness is debatable, I don't think DNS is meant to enforce any uniqueness at all, as it is very common for a website to have multiple domain names.
Surely the uniqueness works in the other direction? A UID identifies one unique subject; the subject can have multiple UIDs.