An EU recommendation is the FAIR Guideline for Scientific Data Management and Administration, which require that scientific data should be findable, accessible, interoperable and reusable (FAIR). The guidelines originate from the Force 11 community and can be applied to both open and protected data and data repositories (Wilkinson et al, 2016). They play an important role as a quality standard for the European Open Access Infrastructure (OpenAIRE).
Read the explanations by Kraft (2018) in German on the website of the German National Library of Science and Technology (TIB) (Blog Entry / PDF Handout).
The FAIR principles are briefly listed here: