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