 to ontology namespaces, which are defined and interrelated using
the SUO "Ontology Modules" database.

IFF itself is specified as an "ontology workspace", which is a name for an
overall ontology effort, within which terms are being defined. For example,
"Merged Ontology" could be an ontology workspace.

Users may define namespaces as they wish, or not use the namespace feature
if they prefer. Users may develop their own notations to indicate that a
namespace occurs within a hierarchy of namespaces, or that