The Materials Design Ontology is designed to enable semantic query and integrated query over multiple databases. By generating mappings between MDO and the schemas of materials databases, we can create MDO-enabled query interfaces. The querying can occur, for instance, via MDO-based query expansion, MDO-based mediation or through MDO-enabled data warehouses.
tib.mdoA summary of the relations in the Bioregistry schema can be found here.