[Crm-sig] CIDOC CRM URI management

George Bruseker george.bruseker at gmail.com
Fri Jan 17 15:05:29 EET 2020


>
>
>
> >      > I will point out that on the CRM site, there is also an entire
> >      > architecture wherein each version has its own overall
> presentation:
> >      > e.g.: http://www.cidoc-crm.org/Version/version-6.2.1
> >
> >     I think this should be maintained but not used as URIs for classes.
> >
> >
> > Why would you argue against using it as the resolving point for
> > individual classes?
>
> Because it includes versions. These are necessary when working across
> different versions but I do not think versions are needed for classes.
>

But is your objection to showing the data in the form that you see when you
click this link (ie not a large html text and a pointer to the anchor) or
to showing a version?

I like the way that the link above displays an individual class and the
functionality it gives to actually use the ontology. I don't know if it
breaks good practice though.

Re displaying a version, don't you always have to display a version? Even
if you are displaying current, it is actually just the last official
version.


>
> > Currently this is not supported at all, correct? I mean you always point
> > at a version. So you would suggest that 'current' should be
> 'versionless'?
>
> I am suggesting that classes do not need versions at all. Doing
> reasoning on a per class and per version basis would be bad practice,
> no? One would expect that the whole RDF/OWL representation would be used
> for reasoning. I think class URIs are only used as identifiers. This
> also avoids the problem of ensuring correct older versions for
> deprecated classes.
>

I think from a provenance point of view, given that the ontology is
changing if one knew the version it could help one interpret the
information in the future. I mean that if you made your data under version
4 when the intension of class x was of a certain size and now we widened
it, then perhaps it affects how you used the ontology. I imagine this is a
pretty sci fi scenario right now and nobody has this use case, but thinking
of how things could shape up in a future world, I think it would be
relevant. Actually even thinking about conversations in LinkedArt people
get confused between versions. Why didn't you use property x? Well I was
looking at version x and in that version class y doesn't have property x.

Anyhow if we had a workflow in which the structured data for classes and
properties were edited first and from that the different products (doc,
rdf, owl etc.) were generated then generating the versioned version would
not be more overheard. Think it's a question of order of production of the
documents.


>
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