Fig. 3
From: DMTO: a realistic ontology for standard diabetes mellitus treatment
Foundational entities of DMTO in the context of BFO and OGMS. To support the interoperability and sharing capabilities of DMTO, it was designed as a sub-ontology of BFO and OGMS top-level universal ontologies. The main classes of DMTO are implemented under the most suitable upper-level universals of BFO and OGMS according to the semantics of these classes. For example, the DMTO’s drug class is implemented as a subclass of BFO’s material entity universal. The rectangles are classes, and the black lines are subclass properties