...

Source ontologies may be imported in their entirety or included selectively through the MIREOT approach – minimum information to reference an external ontology term – used when importing an entire ontology would include unnecessary classes, properties, or axioms.

Imports vs. modules

The Integrated Semantic Framework is maintained in a file repository (originally on Google code and now GitHub on GitHub [full ISF] [VIVO-ISF]) that reflects the source ontologies while creating distribution modules grouping classes and properties more by function, such as grants, agents, education, etc.

Ontologies Integrated into the Integrated Semantic Framework

As documented on the CTSAconnect website ontologies page, the The ISF ontology leverages the following ontologies in a unified, semantic structure:

...