Thx for all your replies and moreover for the finally positive outcome as it seems! It seems that my combination seems technically ok and not even leading to owl full.
Further views on the combination or preference of one of the 2 components (nen2660/objectified value versus sosa/objectified property) always welcome... Greetings Michel Op 13 jan. 2022 20:07 schreef Michael DeBellis <[email protected]>: Actually, I was wrong, I forgot to look at the last example, which does pun a class and a property so it is possible. Sorry for the mistake. Michael So we get: :stroefheid rdf:type owl:ObjectProperty ; rdf:type sosa:ObservableProperty ; so ‘stroefheid’ becomes a property AND a class. Doe this case fall under “owl punning”? (like when something is typed as individual and class). On Thu, Jan 13, 2022 at 9:27 AM Ben Kass <[email protected]<mailto:[email protected]>> wrote: You can pun in OWL 2 Full and DL as both a class and object property - it's briefly mentioned in the documentation here at the bottom of the examples: https://www.w3.org/TR/owl2-new-features/#F12:_Punning I know of one organization that will pun classes and datatype properties (no possible in OWL DL) for convenience of modeling, but when I asked around at my workplace no-one else had heard of people punning in that way, so I've always assumed it's pretty uncommon and I don't think that tooling tends to particularly like when you do it. That's about all I know about it. There is a working draft for OWL 2 online that goes into it more (http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.448.2097&rep=rep1&type=pdf) but those parts seem to have been cut from the final documentation so be aware of that. Best, Ben On Thursday, January 13, 2022 at 9:14:22 AM UTC-5 David Price wrote: On 13 Jan 2022, at 13:57, 'Bohms, H.M. (Michel)' via TopBraid Suite Users <[email protected]> wrote: Background In our NL standard we model quantities (‘stroefheid for some asphalt lanesection/strookvak’) like: :stroefheid rdf:type owl:ObjectProperty ; rdfs:domain :Strookvak ; rdfs:range nen2660:QuantityValue ; nen2660:hasQuantityKind quantitykind:FrictionCoefficient ; . So they become object properties (‘relations’). Especially for Measurements we want to reuse SSN/SOSA. In that case we get: :stroefheid rdf:type sosa:ObservervableProperty ; nen2660:hasQuantityKind quantitykind:FrictionCoefficient ; . Now my question, can we combine the 2 without too many issues? So we get: :stroefheid rdf:type owl:ObjectProperty ; rdf:type sosa:ObservableProperty ; so ‘stroefheid’ becomes a property AND a class. Doe this case fall under “owl punning”? (like when something is typed as individual and class). Do we enter OWL full or not? Off the top of my head so please confirm yourself by reading the OWL spec but ... I think so. Punning or metamodellng is about two levels of class (class member of class) as far as I know. Spec examplese are all classes. I’ve never studied/tested what you’re doing though. Cheers, David Thx ! Michel Dr. ir. H.M. (Michel) Bohms Scientist Specialist Structural Reliability T +31 (0)88 866 31 07 M +31 (0)63 038 12 20 E [email protected] Location<http://www.tno.nl/locations/DTS> <image001.gif><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. 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