Ontology, vocabulary or schema?
They all mean the same thing — a named, shared model for describing something. Different communities just use different words, and this atlas treats them the same, so search by topic and don’t worry which label was used.
- Ontology — academic & biomedical crowd (usually richer, with rules)
- Vocabulary — web & linked-data crowd (usually lighter)
- Schema — web developers (e.g. schema.org)