Required Elements
Table of Contents
1. Europeana Data Model (EDM) Required ProvidedCHO Elements for use with University of Chicago Library Digital Collections
Some of the following represents local usage in addition to what EDM mandates. For a fuller discussion, see Europeana Data Model (EDM) Template for use with University of Chicago Library Digital Collections.
The following are for the edm:ProvidedCHO. For the rest of the required classes, see the General EDM Template.
- dc:title or dc:description or both.
- dc:identifier. String-literal values for locally-created ARK identifiers are used, e.g., "https://ark.lib.uchicago.edu/ark:61001/z9m865s34c01". Note: uchicago:identifier may be used to preserve any identifiers occurring in provided metadata.
- dc:language for TEXT objects and for other object types if there is a language aspect. Language codes conforming to ISO 639-3:2007 should be used as values.
- dc:type. Values should be drawn from the DCMI Type Vocabulary. These are Collection, Dataset, Event, Image, InteractiveResource, MovingImage, PhysicalObject, Service, Software, Sound, StillImage, Text. ``Note that digital representations of, or surrogates for, [PhysicalObject] should use Image, Text or one of the other types.''
- edm:type must occur and must use one of the following values (in upper case): TEXT, IMAGE, SOUND, VIDEO or 3D. (EDM specification). Map values for dcterms:type as follows:
Image : IMAGE MovingImage : VIDEO Sound : SOUND StillImage : IMAGE Text : TEXT
If dcterms:spatial is used, values from Getty's Thesaurus of Geographical Names (TGN) should be used.
If dc(terms):date is used, values should be expressed according to ISO 8601-2019, falling back to EDTF as needed.
Local usage also specifies the following:
- erc:who The value is drawn from dc(terms):creator, dc(terms):contributor, or dc(terms):publisher, in that order. If none of those have values, then use erc:who “(:unkn)", which stands for "unknown".
- erc:what The value is drawn from dc:title or dc:description, in that order.
- erc:when The value is drawn from dc(terms):date. If a date is not supplied, then use erc:when "(:unkn)".
- erc:where The value is drawn from dc:identifier.
Namespaces used in this document:
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix edm: <http://www.europeana.eu/schemas/edm/> .
@prefix erc: <https://www.dublincore.org/groups/kernel/spec/> .
@prefix uchicago: <http://lib.uchicago.edu/> .