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Which tools exist to export and import DCAT-AP?
- CKAN to DCAT-AP
- DCAT-AP to CKAN
Many implementations use CKAN as the catalogue software which is based on a proprietary data model that is different is some respects from the model underlying DCAT and DCAT-AP.
Common open tools for exporting DCAT-AP-compliant metadata from CKAN implementations would make it easier for implementers to deliver DCAT-AP.
This issue has been reported by Stepan Kafka:
http://joinup.ec.europa.eu/mailman/archives/dcat_application_profile/2015-December/000343.html
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improvement
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A CKAN extension ckanext-dcat provides plugins that allow CKAN to expose and consume metadata from other catalogs using RDF documents serialized using DCAT.
Just to add that the DCAT mappings in ckanext-dcat cover also DCAT-AP 1.1, plus the specification of spatial coverage as per GeoDCAT-AP 1.0 (and adopted in DCAT-AP 1.1) - see:
https://github.com/ckan/ckanext-dcat#rdf-dcat-to-ckan-dataset-mapping
For more details, see the relevant thread on the GeoDCAT-AP mailing list, starting at:
http://joinup.ec.europa.eu/mailman/archives/dcat_application_profile-geo/2015-July/000161.html