Travel
3 data model standards serving travel. Every one confirmed against its steward's own site.
| Standard | Steward | Layer | Access | Modernity |
|---|---|---|---|---|
| IATA NDC | IATA | Exchange Schema | licence | 38.5 Legacy |
| OpenTravel Specification | OpenTravel Alliance | Exchange Schema | open | 87.2 Current |
| Tourism: OpenTravel and Alliance for Travel Tech schemas | OpenTravel Alliance / EU Tourism Data Space | Exchange Schema | open | 87.2 Current |