DOI Metadata > DOI Data Model > Underlying Ontology

As described in Structured Semantics Based on Strict Principles, the DOI data model is based on the INDECS framework.

The ontology logical data model, providing a consistent and logical world view, differs from the traditional taxonomic approach to knowledge representation in that it does not follow a rigid parent/child hierarchical structure. Terms may inherit meaning from more than one parent and a more complex relationship may be maintained. An interoperable data dictionary contains terms from different computerized systems or metadata schemes, and shows the relationships they have with one another in a formal way. An illustrative graphic of the high level concept model is provided on the DOI web site (Data Model Underlying Ontology) and further documentation is available. Please consult the DOI Foundation for further information.