Hello Michel, I totally agree with you to stick to the standards as much as possible. Extending rdfs:Label with skos:prefLabel or an other label of your own namespace is alright. The extension of subClassOf is in not touching the meta-model, I am merely extending it. Although I admit, as I told Irene, it is not every day this property is extended.
Now why I introduced it to my project is that sometimes you want to classify a class in a taxonomy twice, once as a subclass in its natural place, centrifugal pump is a pump. And an other time a classification as a class of an other branch in the taxonomy. The classification can be subClassOf, or in my case a special type of subClassOf, a qualification of the class in question. It can be as simple as a qualification as light or heavy. The property's domain and range are both owl:Thing. Kind regards, Bart. On Sunday, 9 December 2018 12:56:50 UTC+1, Bohms, H.M. (Michel) wrote: > > Hi Bart > > > > Just curious…why would you like to subclass the standard rdfs subclass > relationship? > > What is the added semantics in this case? > > > > My advice is always to stick to the standard and not touch the > meta-model/language whenever possible. > > > > In general this causes incompatibilities between ontologies and within > supporting tool sets. > > > > Greetings, Michel > > > > > > > > Dr. ir. H.M. (Michel) Böhms > Senior Data Scientist > > T +31888663107 > M +31630381220 > E [email protected] <javascript:> > > Location > <https://www.google.com/maps/place/TNO+-+Locatie+Delft+-+Stieltjesweg/@52.000788,4.3745183,17z/data=!3m1!4b1!4m5!3m4!1s0x47c5b58c52869997:0x56681566be3b8c88!8m2!3d52.000788!4d4.376707> > > > > <http://www.tno.nl/> > > This message may contain information that is not intended for you. If you > are not the addressee or if this message was sent to you by mistake, you > are requested to inform the sender and delete the message. TNO accepts no > liability for the content of this e-mail, for the manner in which you use > it and for damage of any kind resulting from the risks inherent to the > electronic transmission of messages. > > > > > > > > > > *From:* [email protected] <javascript:> < > [email protected] <javascript:>> *On Behalf Of *Bart Bink > *Sent:* zaterdag 8 december 2018 23:30 > *To:* TopBraid Suite Users <[email protected] <javascript:>> > *Subject:* [topbraid-users] subPropertyOf subClassOf > > > > LS, > > > > So if I use rdfs:label to name a class, TBC shows the label in the class > hierarchy. If I choose to use skos:prefLabel instead of rdfs:Label, TBC > correctly shows the prefLabel in the Class hierarchy. This is because > skos:prefLabel is a subProperty of redfs:Label. TBC interprets this > correctly. > > > > Now if I make a subProperty of rdfs:subClassOf > called qualificationOfConcept TBC correctly shows it as a subProperty of > rdfs:subClassOf. > > [image: subClass_Property.JPG] > > > > But if I use qualificationOfConcept to subType one Class to an other, it > is not shown as a subClass in the Class hierarchy. So TBC does recognize > that qualificationOfConcept is a subProperty of rdfs:subClassOf, but it > does not treat it as such. It does not have the behavior of > rdfs:subClass.[image: > FormView.JPG] > > TBC shows that the class GL:C2843 (Plural) is a subclass of Thing instead > of GL:C790244 (Plurality) > > > > > > What can I do to let TBC show the class correctly in the Class hierarchy > using a subProperty of rdfs:subClassOf? > > > > Kind regards, > > > > Bart Bink. > > > > GL:P1726 > > rdf:type owl:ObjectProperty ; > > rdfs:domain owl:Thing ; > > rdfs:label "qualification of concept"@en-gb ; > > rdfs:range owl:Thing ; > > rdfs:subPropertyOf rdfs:subClassOf ; > > . > > > > GL:C2843 > > rdf:type owl:Class ; > > GL:P1726 GL:C790244 ; > > rdfs:label "plural"@en-gb ; > > . > > > > > > > > > > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
