Validators ​
Tools and services that check the structure and quality of mobility and transport data, ensuring it complies with European standards such as DATEX II, NeTEx, SIRI, and mobilityDCAT-AP.
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What Are Validators? ​
Validators automatically verify whether datasets conform to technical and business specifications. They are essential for maintaining data quality, interoperability, and regulatory compliance in digital mobility ecosystems.
Validators typically perform:
- Schema validation – Checks if files match required XML, JSON, or RDF schemas (e.g., XSD, JSON Schema)
- Business rule validation – Tests domain-specific logic, cardinality, or value constraints
- Data quality checks – Detects missing, inconsistent, or implausible values
- Compliance checks – Confirms datasets meet European standards for publication or exchange
Types of Validators ​
| Type | Description |
|---|---|
| Schema Validators | Validate structure and syntax against XSD/JSON schemas |
| Business Rule Validators | Apply rules beyond the schema (e.g., logical consistency) |
| Multi-standard Validators | Handle several transport formats together |
| Geographic Validators | Verify geospatial and reference integrity |
Common Use Cases ​
Pre-Publication Validation ​
Ensure datasets comply with DATEX II, NeTEx, or mobilityDCAT-AP before submission to a National Access Point (NAP).
Development & Testing ​
Integrate validators in your CI/CD workflow to catch schema or logical errors early.
Quality Monitoring ​
Run scheduled validations to monitor dataset quality and detect degradation over time.
Location Reference Validation ​
Validate ALERT-C or RDS-TMC location codes for correctness and alignment with reference tables.
Example Tool: ALERT-C Locations Tester ​
The ALERT-C Locations Tester validates the consistency and correctness of location codes used in traffic messages.
- Operational use: Czech Road and Motorway Directorate
- Multi-format support: DATEX II, RDS-TMC, custom XML
- European coverage: ALERT-C widely used across Europe
- License: Open source (MIT)
Related Categories ​
Available Tools ​
ALERT-C Locations Tester
Location Reference Validator
Validation tool for ALERT-C location references in RDS-TMC and DATEX II traffic information
Want to Contribute?
Know a validator for DATEX II, NeTEx, SIRI, or mobilityDCAT-AP? Submit your tool →