- From: Antoine Zimmermann <antoine.zimmermann@emse.fr>
- Date: Mon, 30 Oct 2023 17:18:50 +0100
- To: Holger Knublauch <holger@topquadrant.com>, Hugh Glaser <hugh@glasers.org>
- Cc: Dan Brickley <danbri@danbri.org>, W3C Semantic Web <semantic-web@w3.org>
Ah! If only the terms were as clear as: :C rdfschema:isTheSubClassOfTheSuperClass :D . and this would go well with: :x rdfschema:isAnInstanceOfTheClass :C . --AZ Le 30/10/2023 à 16:49, Holger Knublauch a écrit : > OTOH rdfs:superClass would have been consistent with rdf:type, rdfs:label etc. > > And don't get me started on hasXY names... > > Holger > > >> On 30 Oct 2023, at 4:44 pm, Hugh Glaser <hugh@glasers.org> wrote: >> >> Wish away, mate :-) >> >> But nah, it is much more common in computing in general, and possibly RDF, to talk about subclass and subClassing, I think. >> >> In any case, if you had called it superClass, then I would have had to look it up every time to check which way the relationship went. ;-) >> And I'm sure you wouldn't want to upset me. >> So it would have had to be hasSuperClass, which you would find wordy as well. >> >> There you go. >> >> Hugh >> >>> On 30 Oct 2023, at 15:27, Dan Brickley <danbri@danbri.org> wrote: >>> >>> >>> No, we just wished we had called it “super-class” instead of “sub class of”. Same relationship just less wordy and backwards-sounding >>> >>> On Sat, 28 Oct 2023 at 13:28, Harshvardhan J. Pandit <me@harshp.com> wrote: >>> Hi. >>> We have rdfs:subClassOf defined in a standardised specification (RDFS). >>> RDFS several times mentions 'superclass', but AFAIK there is no property >>> or relation to make this explicit, i.e. >>> >>> ```turtle >>> :A rdfs:subClassOf :B . # exists >>> :B rdfs:superClassOf :A . # does this exist anywhere? >>> ``` >>> >>> I can intuit why subclass relations are the most common and preferred >>> methods of use - because anyone can extend the superclass from anywhere. >>> And that either assertion can be inferred from the other (sub to super, >>> vice-versa), but I also think having the superclass be 'aware' of >>> subclasses is a good practice in maintaining ontologies e.g. to get a >>> list of all subclasses which would normally require a query each time. >>> >>> (Likewise for rdfs:subPropertyOf and rdfs:superPropertyOf) >>> >>> Apologies in advance if this has already been answered somewhere (I >>> would appreciate it if you point me to it). >>> >>> Regards, >>> -- >>> --- >>> Harshvardhan J. Pandit, Ph.D >>> Assistant Professor >>> ADAPT Centre, Dublin City University >>> https://harshp.com/ >>> >> >> -- >> Hugh >> +44 7595 334155 >> >> > > -- Antoine Zimmermann École des Mines de Saint-Étienne 158 cours Fauriel CS 62362 42023 Saint-Étienne Cedex 2 France Tél:+33(0)4 77 49 97 02 http://www.emse.fr/~zimmermann/
Received on Monday, 30 October 2023 16:19:01 UTC