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Please note that in DSpace 7, as far as known at the current stage of development, an OpenAIRE oaire schema will be introduced, see: https://github.com/DSpace/DSpace/blob/master/dspace/config/crosswalks/oai/metadataFormats/oai_openaire.xsl and https://github.com/DSpace/DSpace/blob/master/dspace/config/registries/openaire4-types.xml
If you don't have a metadata field yet holding such information and you plan to add it, it could make sense to use the same schema (to use the same approach as in DSpace 7, where in the Entities project a new local “project” schema will be introduced – [dspace-install]/config/registries/project-types.xml). Please to use Use the new schemas (“oaire” and “project”) during installation, then run the registry-loader” script to create it in the database. Examples (from the [dspace-install]/bin folder):
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