NDW's Efforts on Data Quality
NDW works on improving the quality of data streams. Within the NDW organization, data quality is a dedicated team. Below is an overview of the monitoring developed and implemented, how NDW utilizes it, and the benefits for NDW partners.
Validation Checks: NDW performs daily validation checks on multiple data streams to detect technical deviations:
- Issues are reported to the supplier for resolution.
- Technical deviations ("incorrect data") in real-time traffic data (AVG) are excluded from data retrieval.
- Active reports with suppliers can be viewed in the Incident Dashboard.
Contract Requirement Checks: NDW verifies whether a supplier delivers according to agreements:
- This is discussed with the supplier on a monthly basis.
- Results are available via the Data Quality Dashboard in Dexter (for AVG).
- Results can also be exported from Dexter for internal use (for AVG).
Reference Measurements: NDW occasionally conducts reference measurements:
- These provide insights and lead to improvement actions for suppliers, partners, and NDW.
Other Quality Aspects: NDW also monitors other quality aspects such as location references, dataset usage, and service desk performance:
- Issues with location references are raised with the supplier.
- Quality aspects are reported to partners.
Quality Reports: NDW produces semi-annual quality reports on the topics above:
- These reports are discussed in the Partner Meeting.