Changing instance type

[Marie Valadez]

Is there a way a user can change an instance type using the form instead of through the source code? For instance, if an instance of "mammal" is "German Shepherd" but then the user wants to go back and update the type to be a "dog" which is a subclass of "mammal".

[Holger Knublauch]

Hi Marie,

is this a question about TopBraid EDG or Composer?

What is the class that you are using? Does it define a property shape for rdf:type so that you see the type on the form? A screenshot may help.

Holger

On 13 Feb 2024, at 8:13 pm, Marie Valadez <meval...@gmail.com> wrote:

Is there a way a user can change an instance type using the form instead of through the source code? For instance, if an instance of "mammal" is "German Shepherd" but then the user wants to go back and update the type to be a "dog" which is a subclass of "mammal".

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[Marie Valadez]

Actually I think I finally figured it out. I am using EDG and found the dash:SubClassEditor on the forms. The example provided was a little hazy (https://datashapes.org/forms.html#SubClassEditor) on how to use it. 

Here is an example of what I was describing above seems to work. 

test_ontology:Mammal
  a owl:Class ;
  a sh:NodeShape ;
  edg:acronym "mam" ;
  rdfs:label "Mammal" ;
  rdfs:subClassOf owl:Thing ;
  sh:property test_ontology:Mammal-type ;
.
.
test_ontology:Mammal-type
  a sh:PropertyShape ;
  sh:path rdf:type ;
  dash:editor dash:SubClassEditor ;
  dash:rootClass test_ontology:Mammal ;
  sh:name "mammal type" ;
  sh:nodeKind sh:IRI ;
.

test_ontology:Dog
  a owl:Class ;
  a sh:NodeShape ;
  edg:acronym "mam" ;
  rdfs:label "Dog" ;
  rdfs:subClassOf test_ontology:Mammal ;
  sh:Class test_ontology:Mammal ;
.

If the instance was created under the class "Mammal", I am able to use the "mammal type" property to switch to the rdf:type to a different subClassOf mammal.

[Holger Knublauch]

Ok I am glad you figured it out.

Creating a property shape for rdf:type is actually supported by a little convenience feature in the EDG Ontology editor:

Thanks

Holger

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