Open Aviation Data in the European context

This resource consists of the dataset compiled for the purposes of an article submitted for review at the 20th International Conference on Metadata and Semantics Research (MTSR 2026).

The data were obtained from the analysis of Open Aviation Data in the European context. The work is performed by investigating the websites of European national Civil Aviation Agencies (CAAs) members of EASA (European Aviation Safety Agency) and ECAC (European Civil Aviation Conference). The investigation aims to analyze, quantitatively and qualitatively the data that the aviation agencies make available on their websites by employing the Metadata Quality Assessment Methodology (https://data.europa.eu/mqa/methodology?locale=en).

The resource is composed of the following files:

-       Zenodo_CAAs website_EU Data portal comparison: the file is available in both XLSX and CSV formats and reports the quantitative results obtained from the CAAs websites investigation. The table compares data from CAAs' websites with data available on the EU Data Portal by country, filtered by the keyword “aviation”.

-       Zenodo_file format results: the file is available in both XLSX and CSV formats and reports a summary of the file formats through which Open Aviation Data (OAD) are made available on the websites of European national CAAs.

-       Zenodo_MQA results: the file is available in both XLSX and CSV formats and reports the qualitative results of the CAA metadata analysis conducted employing to the EU Metadata Quality Assessment (MQA) methodology, (except for the DCAT-AP compliance category).

-       Zenodo_data per file format histochart: PNG file containing an histogram chart representing the number of data available per file format.

-       Zenodo_proprietary format pie chart: PNG file containing the pie chart representing the discrepancy between proprietary and non-proprietary file formats used by the European national CAAs to provide their OAD.

-       Zenodo_structured data pie chart: PNG file containing the pie chart representing the discrepancy between structured and unstructured OAD made available by European national CAAs.

-       Zenodo_score MQA: PNG file representing a bar chart with the final MQA assessment rating by country.