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To help you improve the quality of your metadata, we have outlined three criteria: language, enabling elements and contextual classes. Each criterion can be assessed for its score on a scale of three tiers (A, B, C), while the overall metadata tier level can only be reached if all three criteria meet the conditions for that level. For example, if one criterion reaches level C and another criterion reaches level A, then the overall tier would be A.
The metadata tier requirements are valid for all edm:type values.
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Language
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Tier | Language | Enabling elements | Contextual classes |
A | At least 25% of the metadata elements from edm:ProvidedCHO class that are relevant have at least one language qualified value | At least one metadata element from one of the ‘Discovery scenario’ groups present in the edm:ProvidedCHO class | None |
B | At least 50% of the metadata elements from edm:ProvidedCHO class that are relevant have at least one language qualified value | At least three distinct metadata elements taken from two distinct ‘Discovery scenario’ groups present in the edm:ProvidedCHO class | At least one contextual class with all minimum required elements, OR link to LOD vocabulary |
C | At least 75% of the metadata elements from edm:ProvidedCHO class that are relevant have at least one language qualified value | At least four distinct metadata elements taken from two distinct ‘Discovery scenario’ groups present in the edm:ProvidedCHO class | At least two contextual classes with all minimum required elements, OR links to LOD vocabularies |
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