Dear Holger One more question on this.
* Indeed serialization is other dimension related to server negotiation etc. * Skos variant is special: totally different beasts (instance versus class etc.) so indeed separate namespace/prefix (we dicided for rdfs:isDefinedBy to make links between them; in practice you see many other relations used). * Lets focus on name spaces for rdfs/owl/shacl variants, let’s assume variant: owl & shacl both importing rdfs (not: shacl importing owl) * Even more focus: rdfs & shacl only (forget about owl for now) Below you propose a different prefix/ns for the shacl-variant (nen2660-shacl). Now the question. Would it be somehow possible to use the same name space for both rdfs and shacl? (think you state that too below…) So having two files/graphs having the same name space, one stating the rdfs stuff, the other the shacl. Then I guess you need a mechanism to merge the two files/graphs other then owl:import (imports does not make sense since it is logical and the ontology would import itself)? Thx again (for your patience…), 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]<mailto:[email protected]> Location<http://www.tno.nl/locations/DTS> [cid:[email protected]]<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. Van: [email protected] <[email protected]> Namens Holger Knublauch Verzonden: dinsdag 6 april 2021 13:22 Aan: [email protected] Onderwerp: Re: [topbraid-users] best practise name space in multiple languages? Hi Michel, First we should make sure that the users of your models understand the distinction between namespaces and graph URIs. You can of course use the same namespace (e.g., https://w3id.org/def/nen2660#<https://w3id.org/def/nen2660>) in multiple graphs. What you are probably referring to is the Graph URI under which the models will be downloaded from on the Web. For the RDFS part, assuming this merely declares classes, properties and their relationships, I suggest they should be found at the URI that is like the namespace (except maybe without the #). Then, the OWL version could be at a URI ending with nen2660-owl and the SHACL version could be at nen2660-shacl, and both would have owl:imports statements to the RDFS Graph URI. OWL is typically pretty strict about what is allowed in the models, e.g. to preserve the OWL DL logic. On the other hand, SHACL is quite relaxed if a graph also contains OWL axioms - they will simply be ignored. So in theory the SHACL graph may owl:import the OWL version too. Using owl:imports will make sure that declarations are not repeated across files, and therefore don’t risk running out of sync, e.g. if someone changes the RDFS classes only in one file. I don’t know enough about how the SKOS version is different to comment on that. I would find it rather confusing if a resource is a class in one graph but a SKOS concept in another. The topic of RDF/XML vs Turtle etc is another dimension, typically solved using HTTP content negotiation. All serialisations would be accessible from the same server URLs yet the server would return different results depending on what accept header the client requests. Holger On 6 Apr 2021, at 6:20 pm, 'Bohms, H.M. (Michel)' via TopBraid Suite Users <[email protected]<mailto:[email protected]>> wrote: In case I have the same specification on different modelling levels: * Skos * Rdfs * Rdfs+owl * Rdfs+shacl Is there some best practice for the name space? (compare same name space for different serializations but now for different languages used…). I now have ie: # baseURI: https://w3id.org/def/nen2660-rdfs But I got the comment that just: # baseURI: https://w3id.org/def/nen2660 was preferred. But then I have 4 variants (actually 12: all in rdf/xml, turtle and json-ld) specifying for the same name space. Thx for advice, 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]<mailto:[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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