Info: mapping lineage statements

[joachimnielandt]

In ISO gmd:lineage offers a sorted list of gmd:LI_Lineage/gmd:statement. The challenge we face in DCAT is that ordering in RDF is not inherently present, whereas XML offers this naturally.

When mapping the gmd:lineage statement, we have dct:provenance refer to a specific web page that (only) contains the lineage information, following the ISO structure. This page is created by a GeoNetwork formatter. This at the very least allows us to not lose the information. In a further discussion, this could be done on a more machine-readable level.

Example:

• record: https://metadata.vlaanderen.be/srv/eng/catalog.search#/metadata/1406bf74-3057-4a70-ab26-95d293b59c8f
• dcat_ap_vl export: https://metadata.vlaanderen.be/api/collections/main/items/1406bf74-3057-4a70-ab26-95d293b59c8f?f=dcat_ap_vl
• lineage: https://metadata.vlaanderen.be/srv/eng/catalog.search#/metadata/1406bf74-3057-4a70-ab26-95d293b59c8f/formatters/lineage

<dct:provenance>
  <dct:ProvenanceStatement rdf:about="https://metadata.vlaanderen.be/srv/dut/catalog.search#/metadata/1406bf74-3057-4a70-ab26-95d293b59c8f/formatters/lineage">
    <dct:title xml:lang="nl">
      Aanmaak gebieden met recht van voorkoop, Zeehavengebieden en Linkerscheldeoevergebied
    </dct:title>
  </dct:ProvenanceStatement>
</dct:provenance>