Owl
Overview
Web Ontology Language OWL is modeling language used to author ontologies.
OWL is used for building ontologies, whereas LinkML is a schema language. Nevertheless, it can be useful to render Schemas as OWL (and in fact many semantic web schemas such as PROV have an OWL or RDFS rendering)
See also
The linkml-owl maps between LinkML data and OWL
Note
The OWL is rendered as RDF/turtle. We recommend the suffix
.owl.ttl
to distinguish from the direct RDF mapping
Mapping
Each LinkML class maps to an OWL class
Each LinkML slot maps to an OWL property
if the range of the slot is class, then an ObjectProperty is used
otherwise DataProperty is used
Exception to the above: if
type_objects
is set then ObjectProperties are always used
OWL restrictions are used for cardinality and range constraints
only
(universal restrictions) is used for rangesIf a slot is not multivalued then a
max 1
cardinality restrictions are usedrequired non-multivalued slots have an
exactly 1
cardinality restrictionrequired multivalued slots have a
min 1
cardinality restrictionit should be understood that OWL follows the Open World Assumption, thus OWL reasoners enforce a weaker model
Each LinkML element is rendered as an instance of the relevant metamodel class
This means punning is used
Set
metaclass=False
if you do not want this behavior
Note
The current default settings for metaclasses
and type_objects
may change in the future