This metric verifies that an ontology prefix is declared in the ontology metadata.
What is being measured?
An ontology prefix is available in the ontology metadata.
Why should we measure it?
The ontology prefix is commonly used to refer to the ontology in RDF documents. Declaring it helps its reusability and findability.
What must be provided for the measurement?
An ontology URI or a file.
What are considered valid results?
Declaring an ontology prefix in the ontology metadata.