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Reference Documentations

Authoritative documentation and specifications that define the structure, semantics, and usage of mobility and transport data standards.

What Is Reference Documentation?

Reference documentation provides official definitions and guidance for implementing European mobility data standards. It includes schemas, UML models, reference guides, and technical specifications that ensure consistent interpretation across implementations.

Used by:

  • Developers to implement data exchange formats correctly
  • System architects to design interoperable platforms
  • Public authorities to ensure conformance in data publication

Types of Reference Documentation

TypeDescriptionExample
Standard SpecificationsCore CEN/ISO or EC documentsCEN/EN 16157 (DATEX II)
Technical GuidelinesBest practices and interpretation notesNeTEx Implementation Guide
API SpecificationsREST/GraphQL or SOAP API definitionsSIRI API Reference
Data Model DefinitionsUML or XSD reference filesDATEX II UML Model
Metadata ProfilesDCAT-AP extensions and mobility profilesmobilityDCAT-AP Specification

Common Use Cases

Implementation Support

Use as the authoritative source when developing or validating systems.

Schema and Model Understanding

Consult data element definitions, UML diagrams, and constraints.

Policy and Compliance

Align local or national initiatives with European standard specifications.

Documentation Reuse

Integrate excerpts into training materials or technical guides.

Example Tool

DATEX II Specification Repository

  • Contains all CEN/EN 16157 parts
  • Includes UML models, schemas, and examples
  • Maintained by the DATEX II community
  • Freely accessible via GitHub and the official portal

Available Tools

Platform Independent data model for the exchange of traffic and travel information (TTI) for Intelligent Transport Systems (ITS).

By NAPCOREData ModelDocumentationITSRoad Traffic Data

Co-financed by the Connecting Europe Facility of the European Union