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| == How to add an ontology class ==
| | #REDIRECT [[How to edit the DBpedia Ontology]] |
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| * Find a list of existing ontology classes via the sidebar ([http://mappings.dbpedia.org/index.php?title=Special%3AAllPages&from=&to=&namespace=100 Ontology Classes]) or have a look at the [http://mappings.dbpedia.org/server/ontology/classes class hierarchy].
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| * If you like to add a new ontology class, create a wiki page in the ''OntologyClass'' namespace. The page name has to be upper camel case.
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| * Write a [[Template:Class|Class template]] defining the ontology class properties like label, super class etc..
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| == How to add an ontology property ==
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| * Find a list of existing ontology properties via the sidebar ([http://mappings.dbpedia.org/index.php?title=Special%3AAllPages&from=&to=&namespace=202 Ontology Properties]).
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| * If you like to add a new ontology property, create a wiki page in the ''OntologyProperty'' namespace. The page name has to be upper camel case.
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| * Write a [[Template:DatatypeProperty|DatatypeProperty template]] or [[Template:ObjectProperty|ObjectProperty template]] defining the ontology property.
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| == Ontology Schema Definition Language ==
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| The language consists of the following templates to cover the ontology schema definition:
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| * [[Template:Class]]
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| * [[Template:DatatypeProperty]]
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| * [[Template:ObjectProperty]]
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| The [[Template:Class|Class template]] offers the following template parameters:
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| * rdfs:label
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| * rdfs:comment
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| * rdfs:subClassOf
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| * owl:equivalentClass
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| The [[Template:DatatypeProperty|DatatypeProperty template]] offers the following template parameters:
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| * rdfs:label
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| * rdfs:comment
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| * rdfs:domain
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| * rdfs:range
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| * owl:equivalentProperty
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| The [[Template:ObjectProperty|ObjectProperty template]] offers the following template parameters:
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| * rdfs:label
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| * rdfs:comment
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| * rdfs:domain
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| * rdfs:range
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| * owl:equivalentProperty
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| == Examples ==
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| The definition of the DBpedia ontology class Person (using the [[Template:Class|Class template]]):
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| <pre>{{Class
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| | rdfs:label = Person
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| }}</pre>
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| The definition of the DBpedia ontology property height (using the [[Template:DatatypeProperty|DatatypeProperty template]]):
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| <pre>{{DatatypeProperty
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| | rdfs:label = height
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| | rdfs:domain = Person
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| | rdfs:range = centimeter
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| }}</pre>
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| The definition of the DBpedia ontology property doctoralAdvisor (using the [[Template:ObjectProperty|ObjectProperty template]]):
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| <pre>{{ObjectProperty
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| | rdfs:label = doctoral advisor
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| | rdfs:domain = Scientist
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| | rdfs:range = Person
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| }}</pre>
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