The metrics software stack allows analysis of metadata with regards to the DCAT Application Profile for data portals in Europe (DCAT-AP) standard, which is based on the Data Catalog Vocabulary (DCAT) developed by the W3C.

Multiple components analyse incoming metadata and derive measurements based on the Data Quality Vocabulary (DQV). These services are pipe modules and can therefore be orchestrated as a pipe.

In order to determine metadata quality the following five aspects are considered:

• Compliance with DCAT-AP and DCAT-AP derivatives
• Disclosure of information not mandated by DCAT-AP
• Accessibility of the data referenced in the metadata through the Access and Download URL
• Machine readability of the referenced data
• License usage

Demo

https://data.europa.eu/api/mqa/cache/