On 30/08/2017 3:15, Irene Polikoff wrote:
Michel,
I have not tried the OWL to SHACL converter in 5.3, only in the 5.4
which is not yet generally available.
The converter is “work in progress” and I know that it was extended
for 5.4. However, it will not convert all possible combinations of OWL
axioms. Only the most common ones. To decide what constitute a common
pattern, we looked at several well known ontologies such as FIBO and
picked patterns that cover 80-90% of the modeling axioms.
Based on my 5.4 experience:
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:allValuesFrom :BigPump ;
owl:onProperty :hasPump ;
] ;
Should be converted
You should see something like
:BigSpace
sh:property [
sh:path :hasPump ;
sh:class :BigPump ;
]
owl:equivalentClass [
rdf:type owl:Restriction ;
owl:allValuesFrom [
rdf:type rdfs:Datatype ;
owl:onDatatype xsd:float ;
owl:withRestrictions (
[
xsd:minExclusive "150.0"^^xsd:float ;
]
) ;
] ;
owl:onProperty :area ;
] ;
Will not be converted. It is not one of the patterns we currently
support in the conversion.
Yes, this is because owl:equivalentClass axioms really do carry
different meaning, and we don't want to pretend that they can be
converted automatically. Some manual post-processing will be needed in
these cases, e.g. converting them to SHACL-AF rules.
Holger
On Aug 29, 2017, at 10:45 AM, Bohms, H.M. (Michel)
<[email protected] <mailto:[email protected]>> wrote:
Hi Irene,
When converting the owl restrictions to SHACL within tbc, the 2
restrictions from:
:BigSpace
rdf:type owl:Class ;
rdfs:subClassOf :Space ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:allValuesFrom :BigPump ;
owl:onProperty :hasPump ;
] ;
owl:disjointWith :SmallSpace ;
owl:equivalentClass [
rdf:type owl:Restriction ;
owl:allValuesFrom [
rdf:type rdfs:Datatype ;
owl:onDatatype xsd:float ;
owl:withRestrictions (
[
xsd:minExclusive "150.0"^^xsd:float ;
]
) ;
] ;
owl:onProperty :area ;
] ;
.
Seem not converted.
Was this to be expected?
What IS generated, I do not understand:
[
rdf:type rdfs:Datatype ;
owl:onDatatype :area ;
].
[
rdf:type rdfs:Datatype ;
owl:onDatatype :area ;
].
[
sh:class :BigPump ;
].
[
sh:class :SmallPump ;
].
Thx Michel
Dr. ir. H.M. (Michel) Böhms
Senior Data Scientist
T +31888663107
M +31630381220
E [email protected] <mailto:[email protected]>
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