I'm trying to model an ontology describing the knowledge of specific domain collection of documents and I'm using Protege 3.4 for this purpose. I want to use the Dublin Core metadata ontology properties in order to annotate my objects. The Protege tutorial says that in order to annotate classes and other ontology entities with the Dublin core elements and other Dublin Core Meta Data Terms the Dublin Core Meta Data ontology (DC Ontology) must be imported.
My question is the following: Why is it necessary to import the ontology? Isn't it enough only to add a new namespace?
I want to use the terms from the ontology only as references not to do reasoning on them nor to expand them.
Thanks in advance, Ivelina Nikolova