Metadata Tier B (Europeana website as an exploration platform)
If you want to increase the visibility of your content through our thematic collections and other browse entry points, at least 50% of the provided metadata elements that are relevant need to have at least one language tag. The metadata should now include at least three enabling elements covering at least two distinct discovery and user scenarios and one contextual class with all minimum required elements or link to LOD vocabulary (also with all minimum required elements).
Contextual resource referred by the ProvidedCHO: A contextual entity (an instance of a contextual class such as edm:Agent, skos:Concept, edm:Place, edm:TimeSpan) that is linked directly from edm:ProvidedCHO (ie. Provider's ore:Proxy) and therefore ignoring contextual resources that are only linked from other contextual resources via e.g. placeOfBirth.
Minimum required metadata elements per contextual class