Hi Michel,

we have (long) moved away from OWL 2 and suggest to use SHACL for these use cases. The example with rdf:value looks like sh:minCount 1; sh:maxCount 1; sh:datatype xsd:decimal.

Holger


On 25/03/2020 17:25, 'Bohms, H.M. (Michel)' via TopBraid Suite Users wrote:

Ahhhh, ok!

The next question would than be: why is that?

Isn’t the example a valid case?

In the primer I see only qualifiedCardinality examples with “onClass”.....maybe this simply should not work for qualified datatype properties?

Any other way to say that my class has exactly one attribute with type xsd:decimal?

Like normal cardinality + some or all valuesfrom?

Thx a lot,

Michel

        

Dr. ir. H.M. (Michel) Böhms
Senior Data Scientist

        

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*Van:* [email protected] <[email protected]> *Namens *Holger Knublauch
*Verzonden:* Tuesday, March 24, 2020 11:09 PM
*Aan:* [email protected]
*Onderwerp:* Re: [topbraid-users] question on restriction

This OWL 2 feature is only superficially supported by TopBraid and will not be supported in the future.

Holger

On 25/03/2020 05:07, 'Bohms, H.M. (Michel)' via TopBraid Suite Users wrote:

    bs:QuantityValue

      rdf:type owl:Class ;

    rdfs:subClassOf owl:Thing ;

    rdfs:subClassOf [

    rdf:type owl:Restriction ;

    owl:onClass xsd:decimal ;

    owl:onProperty rdf:value ;

    owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger ;

        ] ;

    skos:prefLabel "kwantiteitwaarde"@nl ;

    skos:prefLabel "quantity value"@en ;

    .

    Someone said: red should be owl:onDatatype but when I do that I
    get error missing class:

    ???

        

    Dr. ir. H.M. (Michel) Böhms
    Senior Data Scientist


        

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