This page (revision-24) was last changed on 10-Feb-2017 10:50 by Albrecht Striffler

This page was created on 25-Oct-2013 10:38 by Jochen Reutelshöfer

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Version Date Modified Size Author Changes ... Change note
24 10-Feb-2017 10:50 2 KB Albrecht Striffler to previous
23 10-Feb-2017 10:49 2 KB Albrecht Striffler to previous | to last
22 21-May-2014 16:03 2 KB Joba Baumeister to previous | to last
21 21-May-2014 16:00 2 KB Joba Baumeister to previous | to last

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Doc Ontology
Doc Ontology

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[{TableOfContents }]
!!! Creating an Ontology
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An ontology is created in a similar way as a d3web knowledge base using the ''knowledgebase'' markup.
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!!! Definition
An ontology is created in a similar way as a d3web knowledge base using the ''ontology'' markup.
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%%Ontology
@uses: myPackageName
%%knowledgebase
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For the name {{myPackageName}} please use the name of the [package|Doc Package] that you used for the ontology definitions.
A more detailed description of this markup can be found on the page [Doc KnowledgeFormalization].
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Ontology entities newly created within the wiki are created in the ontology repository under the so-called local namespace, that is the URL referring to the wiki installation URL.
On the wiki pages, the local namespace (''lns'') is ommitted.
Ontology entities newly created within the wiki are created under the so-called local namespace, that is the URL referring to the wiki installation URL.
The abbreviation of the local namespace always is ''lns'', i.e. the abbreviated identifier of the local concept Person is ''lns:Person''.
When using ontology entities from the local namespace the namespace prefix can entirely be omitted.
The following markups can be used to create ontology entities (under local namespace if the namespace prefix is omitted):
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* [Class| Doc Class]
* [Individual| Doc Individual]
* [ObjectProperty| Doc ObjectProperty]
* [Relation| Doc Relation]
* [Turtle| Doc Turtle]
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!!! Example
The following example defines the package name {{myPackageName}} and creates a new ontology using this package.
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%%Ontology
@uses: myPackageName
%
%%class Person
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%%Package myPackageName
%%Individual Ms. MoneyPenny
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%%Turtle
:System rdf:type owl:Class .
%%relation "Ms. MoneyPenny" rdf:type Person
}}}
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:KnowWE rdf:type :System ;
rdfs:label "KnowWE Wiki" .
%
}}}
%%knowledgebase
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On the same page, the [Turtle|Doc Turtle] markup is used to define an owl:Class {{System}} (in the local namespace) and an instance of {{System}} with the name {{KnowWE}}. Additionally, the label "KnowWE Wiki" is defined.
!!!Importing existing ontologies into a KnowWE ontology
By attaching an ontology-file to this page (containing the ontology in any standard ontology format) an ontology can be imported into the KnowWE ontology repository as follows:
{{{
%%Ontology
@import: movie-ontology.owl
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}}}
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%%class Person
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__Note:__ For this example a file named ''movie-ontology.owl'' needs to be attached to ''this'' page!
%%Individual Ms. MoneyPenny
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%%relation "lns:Ms. MoneyPenny" rdf:type lns:Person
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!!! See Also
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The following markups can be used to create ontology entities (under local namespace if the namespace prefix is omitted):
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* [Turtle| Doc Turtle]
* [Class| Doc Class]
* [Individual| Doc Individual]
* [ObjectProperty| Doc ObjectProperty]
* [Relation| Doc Relation]
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This page (revision-24) was last changed on 10-Feb-2017 10:50 by Albrecht Striffler Top