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The DOI Data Dictionary contains the names and definitions of all terms used in the DOI Metadata Kernel schema, including the Allowed Value Sets used for elements with controlled vocabularies.
The Dictionary is organized as a hierarchical ontology, so that each term has one or more "parents" or supertypes, with the term doi:Entity at the top of the hierarchical tree. It is published as a set of web pages which may be navigated by hyperlink. The Dictionary contains other terms not used in messages but necessary to establish the supertype hierarchy.
Terms will be added to the Dictionary at the request of any DOI Registration Agency by the modification of the Metadata Kernel and/or its Allowed Values, or the publication of other DOI message schemas in addition to the Metadata Kernel. Any Registration Agency may add new values
Click here to access the Dictionary.