@prefix diso:    <https://diso.ontozoo.io/ontology#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix void:    <http://rdfs.org/ns/void#> .

#################################################################
#    Ontology
#################################################################

<https://diso.ontozoo.io/ontology>
    a owl:Ontology ;
    dcterms:title "The DISO Vocabulary" ;
    dcterms:description "A small OWL vocabulary for describing DISO (Defence, Intelligence and Security Ontologies) as a VoID / Dublin Core network of ontologies. It specialises void:Dataset into the ontology network, its subdomain clusters, and its member ontologies. Descriptive metadata reuses Dublin Core Terms and VoID terms directly." ;
    dcterms:creator <https://orcid.org/0009-0009-0260-0492> ;
    dcterms:publisher "City St George's, University of London" ;
    dcterms:license <https://spdx.org/licenses/MIT> ;
    dcterms:issued "2026-05-07"^^xsd:date ;
    owl:versionInfo "1.0.0" ;
    rdfs:seeAlso <https://github.com/city-artificial-intelligence/diso> .

#################################################################
#    Classes
#################################################################

diso:OntologyNetwork
    a owl:Class ;
    rdfs:subClassOf void:Dataset ;
    rdfs:label "Ontology Network" ;
    rdfs:comment "A curated network (collection) of ontologies, described as a VoID dataset whose void:subset members are its clusters. DISO itself is the sole instance." .

diso:Cluster
    a owl:Class ;
    rdfs:subClassOf void:Dataset ;
    rdfs:label "Cluster" ;
    rdfs:comment "A subdomain grouping (cluster) within an ontology network. Its void:subset members are member ontologies, or — for a grouping cluster — further sub-clusters." .

diso:MemberOntology
    a owl:Class ;
    rdfs:subClassOf void:Dataset ;
    rdfs:label "Member Ontology" ;
    rdfs:comment "An individual ontology that is a member of the network, described as a VoID dataset." .

#################################################################
#    Datatype property
#################################################################

diso:spdxLicenseExpression
    a owl:DatatypeProperty ;
    rdfs:range xsd:string ;
    rdfs:label "SPDX licence expression" ;
    rdfs:comment "The licence of a dataset expressed as an SPDX licence expression, recorded verbatim. Captures compound expressions (e.g. 'MIT AND CC-BY-4.0') and the value 'NOASSERTION' where no licence could be established." .

#################################################################
#    Reused external terms — declarations only.
#    These make the ABox parse losslessly without importing the
#    full VoID and Dublin Core Terms ontologies.
#################################################################

void:Dataset      a owl:Class .

rdfs:label        a owl:AnnotationProperty .
void:subset       a owl:AnnotationProperty .
dcterms:title     a owl:AnnotationProperty .
dcterms:description a owl:AnnotationProperty .
dcterms:abstract  a owl:AnnotationProperty .
dcterms:creator   a owl:AnnotationProperty .
dcterms:publisher a owl:AnnotationProperty .
dcterms:issued    a owl:AnnotationProperty .
dcterms:identifier a owl:AnnotationProperty .
dcterms:license   a owl:AnnotationProperty .
dcterms:source    a owl:AnnotationProperty .