What mixed-dataset access must a data holder provide to a user under the EU Data Act?
The Data Act context is the starting point for this answer. Where the user cannot directly access the data from the connected product or related service, the data holder must make readily available data and necessary metadata accessible to the user without undue delay, in the same quality available to the data holder, securely, free of charge, and in a comprehensive, structured, commonly used, machine-readable format. Where relevant and technically feasible, access should be continuous and real-time.
That duty covers both personal and non-personal data only when the personal-data layer is lawful. If GDPR conditions are not met for a personal-data field, the data holder should not treat that as a reason to suppress the non-personal fields that can lawfully be made available.
- Deliver in-scope non-personal fields and metadata in the required format and quality.
- For personal fields, confirm whether the user is the data subject or has a valid GDPR basis for receiving them.
- Document any excluded field by category: personal-data restriction, inferred or derived data, trade secret, security requirement, unavailable data, or out-of-scope content.
Article 4 sets user access duties for readily available product data, related-service data, and metadata, including format and quality requirements.
Summarises the Chapter II user-access right and the scope of readily available raw and pre-processed data.