# Ontology Mapping Management (Source Schema → Ontology)
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##### Ontology Mapping Management (Source Schema → Ontology)
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| Operation | Method | Endpoint | Request Content-Type | Response Accept | Notes | 
| --- |--- |--- |--- |--- |--- |
| Create Mapping | POST | `/ontologies/{id}/mappings` | `text/turtle` (R2RML), `application/json` | `application/json` | Accepts R2RML (Turtle serialization) or custom mapping format | 
| List Mappings | GET | `/ontologies/{id}/mappings` | — | `application/json` | Filter by source schema, target class | 
| Get Mapping | GET | `/ontologies/{id}/mappings/{mappingId}` | — | `text/turtle`, `application/json` |  | 
| Update Mapping | PUT | `/ontologies/{id}/mappings/{mappingId}` | `text/turtle`, `application/json` | `application/json` |  | 
| Delete Mapping | DELETE | `/ontologies/{id}/mappings/{mappingId}` | — | — |  | 
| Validate Mapping | POST | `/ontologies/{id}/mappings/{mappingId}/validate` | — | `application/json` | Dry-run against source schema |