Standard bibliographic record format as used in the Central Alma catalog, in XML syntax.
Standard general record format, widely used for heritage data, in 2 forms:
See the Dublincore website.
For the data from the Central Alma Catalog via downloads and OAI harvesting, Unqualified Dublin Core (DC Elements) is used, based on the standard MARC-DC mapping of the Library of Congress.
Resource Description Framework, a general format for linked data, consisting of 'triples'.
Many different linked data formats, or 'ontologies', can be represented in RDF. There are also different syntax forms such as RDF / XML, Turtle, N3, JSON-LD, etc.
For the data from the Central Alma Catalog, a proprietary RDF format is used, based on EDM (Europeana Data Model), in which Qualified Dublin Core (Dublin Core Terms) plays a central role in describing the collection objects. The MARC data from the Central Catalog is converted to DC according to a mapping based on the official Library of Congress 'MARC to Dublin Core Crosswalk', with some adjustments.