SOC2 Definitions 2 slide-16

Shared Ontologies Provide Semantics

If two applications use the same ontology, they have a good chance of interoperating.

Ontologies can also be used for mediating input/output labels.
http://org3.example.com/ontologies/MappingOntology#> rdf:type owl:Ontology

Org2Ont:NumBundles rdf:type owl:Class;

owl:equivalentClass Org1Ont:Quantity .

Org2Ont:DeliveryDate rdf:type owl:Class;

owl:equivalentClass Org1Ont:DueDate .

Org2Ont:AvailabilityConfirmation rdf:type owl:Class;

owl:equivalentClass Org1Ont:AvailabilityConfirmation .

By using this OWL ontology, the composing program knows that the service with input "DeliverDate" is the same as the input "DueDate".
Well, that's the theory. Let's move on.