| Findable |
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| F1. (Meta)data are assigned a globally unique and persistent identifier. |
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| F2. Data are described with rich metadata (defined by R1 below). |
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| F3. Metadata clearly and explicitly include the identifier of the data they describe. |
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| F4. (Meta)data are registered or indexed in a searchable resource. |
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| Accessible |
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| A1. (Meta)data are retrievable by their identifier using a standardised communications protocol |
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| A1.1 The protocol is open, free, and universally implementable |
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| A1.2 The protocol allows for an authentication and authorisation procedure, where necessary |
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| A2. Metadata are accessible, even when the data are no longer available |
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| Interoperable |
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| I1. (Meta)data use a formal, accessible, shared, and broadly applicable language for knowledge representation. |
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| I2. (Meta)data use vocabularies that follow FAIR principles. |
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| I3. (Meta)data include qualified references to other (meta)data. |
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| Reusable |
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| R1. (Meta)data are richly described with a plurality of accurate and relevant attributes |
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| R1.1. (Meta)data are released with a clear and accessible data usage license |
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| R1.2. (Meta)data are associated with detailed provenance |
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| R1.3. (Meta)data meet domain-relevant community standards |
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