diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..92c1ccc
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,42 @@
+name: Build and Release Ontology
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get current date
+        id: date
+        run: echo "::set-output name=date::$(date +'%Y-%m-%d %H:%M')"
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: 3.9
+          architecture: x64
+
+      - name: Install owlready2
+        run: pip3 install git+https://github.com/csse-uoft/owlready2.git
+
+      - name: Generate ontologies
+        run: python -m src.main
+
+      - name: Release & Assets
+        uses: johnwbyrd/update-release@v1.0.0
+        with:
+          release: Latest
+          token: ${{ secrets.GITHUB_TOKEN }}
+          body: Generated on ${{ steps.date.outputs.date }}
+          files:
+            - ./cudr-maturity-model.owl
+            - ./fair.owl
diff --git a/src/addon.py b/src/addon.py
new file mode 100644
index 0000000..d5e473f
--- /dev/null
+++ b/src/addon.py
@@ -0,0 +1,24 @@
+# This file includes the missing entities in owlready2
+
+from owlready2 import Thing, default_world
+from src.namespaces import rdfs, xsd
+
+
+def add_missing_entities():
+    default_world.get_ontology("https://vocab.org/vann/vann-vocab-20100607.rdf").load()
+    with rdfs:
+        class Literal(Thing):
+            pass
+
+        class Resource(Thing):
+            pass
+
+    with xsd:
+        class duration(Thing):
+            pass
+
+        class positiveInteger(Thing):
+            pass
+
+        class decimal(Thing):
+            pass
diff --git a/src/classes/catalogue.py b/src/classes/catalogue.py
new file mode 100644
index 0000000..e4d6bbf
--- /dev/null
+++ b/src/classes/catalogue.py
@@ -0,0 +1,91 @@
+from owlready2 import default_world, Thing
+from src.namespaces import vann, dct, dcat, skos, cudr, rdfs, vcard, foaf, fair, owl, adms, xsd, sc, odrl, dqv
+from datetime import date, datetime
+
+
+class Catalogue(Thing):
+    label = "CUDR Catalogue Entry"
+    is_a = [
+        # ------
+        # Level 1
+        # ------
+        dcat.theme.only(skos.Concept),
+        dct.title.only(rdfs.Literal),
+        dct.description.only(rdfs.Literal),
+        dcat.keyword.only(rdfs.Literal),  # comma separated tags
+        dct.issued.only(datetime),
+        cudr.hasTemporalStart.only(datetime),  # missing in the paper
+        cudr.hasTemporalEnd.only(datetime),  # missing in the paper
+        dct.temporal.only(dct.PeriodOfTime),  # not implemented in CKAN
+        dct.spatial.only(dct.Location),
+
+        # ------
+        # Level 2
+        # ------
+        dct.identifier.exactly(1, str),  # !! lowercase i
+        cudr.accessCategory.only(str),
+        dct.license.only(dct.LicenseDocument),  # !! not license_id
+        dcat.accessURL.only(rdfs.Resource),
+        dcat.accessService.only(dcat.DataService),
+        dcat.contactPoint.only(vcard.Kind),
+        dct.publisher.only(foaf.Agent),
+        dct.creator.only(foaf.Agent),
+        cudr.accessedAt.only(datetime),
+
+        # ------
+        # Level 3
+        # ------
+        dcat.landingPage.only(rdfs.Resource),
+        dct.language.only(dct.LinguisticSystem),
+        fair["rda-f1-01d"].only(bool),
+        fair["rda-f1-02d"].only(bool),
+        dct.format.only(dct.MediaTypeOrExtent),
+        dcat.downloadURL.only(rdfs.Resource),
+        owl.versionInfo.only(rdfs.Literal),
+        adms.versionNotes.only(rdfs.Literal),
+        dct.isVersionOf.only(dcat.Dataset),
+        dct.hasVersion.only(dcat.Dataset),
+        dct.provenance.only(dct.ProvenanceStatement),
+        dcat.temporalResolution.only(xsd.duration),
+        dcat.spatialResolutionInMeters.only(xsd.decimal),
+        cudr.spatialResolutionInRegion.only(sc.AdministrativeArea),  # No such property in dcat, using cudr
+
+
+        # ------
+        # Level 4
+        # ------
+        cudr.containsIndividualData.only(bool),
+        cudr.containsIdentifiableIndividualData.only(bool),
+        cudr.containsIndigenousData.only(bool),
+        odrl.hasPolicy.only(odrl.Policy),
+        cudr.indigenousRightsHolder.only(foaf.Agent),
+        cudr.spatialIndigenousCommunity.only(dct.Location),
+
+        # ------
+        # Level 5
+        # ------
+        fair["rda-r1.3-01d"].only(bool),
+        fair["rda-i1-01d"].only(bool),
+        fair["rda-i1-02d"].only(bool),
+        fair["rda-i2-01d"].only(bool),
+        fair["rda-i3-01d"].only(bool),
+        fair["rda-a1.2-01d"].only(bool),
+        fair["rda-a1-02d"].only(bool),
+        fair["rda-a1-03d"].only(bool),
+        fair["rda-a1-04d"].only(bool),
+        fair["rda-a1-05d"].only(bool),
+        fair["rda-a1.1-01d"].only(bool),
+
+        # ------
+        # Level 6
+        # ------
+        cudr.rows.only(xsd.positiveInteger),
+        cudr.columns.only(xsd.positiveInteger),
+        cudr.cells.only(xsd.positiveInteger),
+        cudr.triples.only(xsd.positiveInteger),
+        cudr.entities.only(xsd.positiveInteger),
+        cudr["properties"].only(xsd.positiveInteger),
+        dqv.hasQualityAnnotation.only(xsd.positiveInteger),
+        dqv.inDimension.only(dqv.Dimension),
+
+    ]
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..ad65ee5
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,22 @@
+from owlready2 import default_world
+from src.namespaces import fair, cudr
+from src.metadata import set_cudr_metadata, set_fair_metadata
+from src.addon import add_missing_entities
+
+if __name__ == '__main__':
+    print('running')
+    add_missing_entities()
+
+    set_cudr_metadata(cudr, fair)
+    set_fair_metadata(fair)
+
+    with fair:
+        import src.properties.fair
+
+        fair.save('./fair.owl')
+
+    with cudr:
+        import src.properties.cudr
+        import src.classes.catalogue
+
+        cudr.save('./cudr-maturity-model.owl')
diff --git a/src/metadata.py b/src/metadata.py
new file mode 100644
index 0000000..2b86afd
--- /dev/null
+++ b/src/metadata.py
@@ -0,0 +1,26 @@
+from owlready2 import default_world
+from src.namespaces import vann, dct, dct_onto, dcat_onto, skos_onto, adms_onto, foaf_onto, sc_onto, odrl_onto, vcard_onto
+
+
+def set_dependencies(base_onto, fair_onto):
+    # Set where the fair ontology can be loaded, i.e. the target url to the fair ontology
+    fair_onto.set_location("https://github.com/csse-uoft/maturity-model-ontology/releases/download/latest/fair.owl")
+
+    base_onto.imported_ontologies = [fair_onto, dct_onto, dcat_onto, skos_onto, adms_onto, foaf_onto, sc_onto, odrl_onto, vcard_onto]
+
+
+def set_fair_metadata(base_onto):
+    # Load vann ontology
+    vann.preferredNamespacePrefix[base_onto.metadata] = ['fair']
+    vann.preferredNamespaceUri[base_onto.metadata] = ['http://ontology.eil.utoronto.ca/fair#']
+    dct.title[base_onto.metadata] = ['FAIR Ontology']
+    dct.description[base_onto.metadata] = ["FAIR Ontology"]
+
+
+def set_cudr_metadata(base_onto, fair_onto):
+    set_dependencies(base_onto, fair_onto)
+    # Load vann ontology
+    vann.preferredNamespacePrefix[base_onto.metadata] = ['cudr']
+    vann.preferredNamespaceUri[base_onto.metadata] = ['http://data.urbandatacentre.ca/']
+    dct.title[base_onto.metadata] = ['CUDR Maturity Model Ontology']
+    dct.description[base_onto.metadata] = ["CUDR Maturity Model Ontology integrated in CKAN"]
diff --git a/src/namespaces.py b/src/namespaces.py
new file mode 100644
index 0000000..3f48f1a
--- /dev/null
+++ b/src/namespaces.py
@@ -0,0 +1,44 @@
+from owlready2 import default_world
+
+# Load external ontologies, in case some ontology does not specify the ontology IRI, we assign them the ontology IRI
+dct_onto = default_world.get_ontology("https://csse-uoft.github.io/ontologies/dct.rdf").load()
+dct = dct_onto.get_namespace("http://purl.org/dc/terms/")
+
+dcat_onto = default_world.get_ontology("https://www.w3.org/ns/dcat2.rdf").load()
+dcat = dcat_onto.get_namespace("http://www.w3.org/ns/dcat#")
+
+skos_onto = default_world.get_ontology("http://www.w3.org/TR/skos-reference/skos.rdf").load()
+skos = skos_onto.get_namespace("http://www.w3.org/2004/02/skos/core#")
+
+adms_onto = default_world.get_ontology("http://www.w3.org/ns/adms.rdf").load()
+adms = adms_onto.get_namespace("http://www.w3.org/ns/adms#")
+
+dqv_onto = default_world.get_ontology("https://csse-uoft.github.io/ontologies/dqv.owl").load()
+dqv = dqv_onto.get_namespace("http://www.w3.org/ns/dqv#")
+
+foaf_onto = default_world.get_ontology("https://csse-uoft.github.io/ontologies/foaf.rdf").load()
+foaf = foaf_onto.get_namespace("http://xmlns.com/foaf/0.1/")
+
+sc_onto = default_world.get_ontology("https://schema.org/docs/schemaorg.owl").load()
+sc = sc_onto.get_namespace("https://schema.org/")
+
+odrl_onto = default_world.get_ontology("https://www.w3.org/ns/odrl/2/ODRL22.rdf").load()
+odrl = odrl_onto.get_namespace("http://www.w3.org/ns/odrl/2/")
+
+vcard_onto = default_world.get_ontology("https://www.w3.org/2006/vcard/ns.rdf").load()
+vcard = vcard_onto.get_namespace("http://www.w3.org/2006/vcard/ns#")
+
+
+# Use `get_ontology` for the ontologies we want to create/modify, otherwise use `get_namespace`
+vann = default_world.get_namespace("http://purl.org/vocab/vann/")
+dc = default_world.get_namespace("http://purl.org/dc/elements/1.1/")
+cc = default_world.get_namespace("http://creativecommons.org/ns#")
+owl = default_world.get_namespace("http://www.w3.org/2002/07/owl#")
+prov = default_world.get_namespace("http://www.w3.org/ns/prov#")
+oa = default_world.get_namespace("http://www.w3.org/ns/oa#")
+vcard = default_world.get_namespace("http://www.w3.org/2006/vcard/ns#")
+
+xsd = default_world.get_ontology("http://www.w3.org/2001/XMLSchema#")
+rdfs = default_world.get_ontology("http://www.w3.org/2000/01/rdf-schema#")
+cudr = default_world.get_ontology("http://data.urbandatacentre.ca/")
+fair = default_world.get_ontology("http://ontology.eil.utoronto.ca/fair#")
diff --git a/src/properties/cudr.py b/src/properties/cudr.py
new file mode 100644
index 0000000..c814a6f
--- /dev/null
+++ b/src/properties/cudr.py
@@ -0,0 +1,68 @@
+from owlready2 import DataProperty, ObjectProperty
+from datetime import date
+from src.namespaces import sc, foaf, dct, xsd
+
+
+class accessCategory(DataProperty):
+    range = [str]
+
+
+class hasTemporalStart(DataProperty):
+    range = [date]
+
+
+class hasTemporalEnd(DataProperty):
+    range = [date]
+
+
+class accessedAt(DataProperty):
+    range = [date]
+
+
+class spatialResolutionInRegion(ObjectProperty):
+    range = [sc.AdministrativeArea]
+    pass
+
+
+class containsIndividualData(DataProperty):
+    range = [bool]
+
+
+class containsIdentifiableIndividualData(DataProperty):
+    range = [bool]
+
+
+class containsIndigenousData(DataProperty):
+    range = [bool]
+
+
+class indigenousRightsHolder(ObjectProperty):
+    range = [foaf.Agent]
+
+
+class spatialIndigenousCommunity(ObjectProperty):
+    range = [dct.Location]
+
+
+class rows(DataProperty):
+    range = [xsd.positiveInteger]
+
+
+class columns(DataProperty):
+    range = [xsd.positiveInteger]
+
+
+class cells(DataProperty):
+    range = [xsd.positiveInteger]
+
+
+class triples(DataProperty):
+    range = [xsd.positiveInteger]
+
+
+class entities(DataProperty):
+    range = [xsd.positiveInteger]
+
+
+class properties(DataProperty):
+    range = [xsd.positiveInteger]
diff --git a/src/properties/fair.py b/src/properties/fair.py
new file mode 100644
index 0000000..c1881a2
--- /dev/null
+++ b/src/properties/fair.py
@@ -0,0 +1,23 @@
+from owlready2 import DataProperty
+
+
+# FAIR
+# Level 3
+type("rda-f1-01d", (DataProperty,), {"range": [bool]})
+type("rda-f1-02d", (DataProperty,), {"range": [bool]})
+
+# Level 5
+# Content
+type("rda-r1.3-01d", (DataProperty,), {"range": [bool]})
+type("rda-i1-01d", (DataProperty,), {"range": [bool]})
+type("rda-i1-02d", (DataProperty,), {"range": [bool]})
+type("rda-i2-01d", (DataProperty,), {"range": [bool]})
+type("rda-i3-01d", (DataProperty,), {"range": [bool]})
+
+# Access
+type("rda-a1.2-01d", (DataProperty,), {"range": [bool]})
+type("rda-a1-02d", (DataProperty,), {"range": [bool]})
+type("rda-a1-03d", (DataProperty,), {"range": [bool]})
+type("rda-a1-04d", (DataProperty,), {"range": [bool]})
+type("rda-a1-05d", (DataProperty,), {"range": [bool]})
+type("rda-a1.1-01d", (DataProperty,), {"range": [bool]})