Add `dct:references` to mark high value datasets or reference datasets

[metaodi]

In the German DCAT-AP 2.0 standard the attribute dct:references is used to link to their "Musterdatenkatalog", a catalog of reference datasets. The goal is to provide a way to find similar datasets across different portals.

E.g. "Baumkataster" has the following reference dataset: https://musterdatenkatalog.de/def/musterdatensatz/gruenflaechen/baumbestandBaumkataster

If this property is adapted, we need to make a note about its implementation. We could either create a new Swiss-specific "Musterdatenkatalog" or use https://musterdatenkatalog.de of Bertelsmann.

Links

• And then this (and similar dataset can be found using this URI: https://opendata.schleswig-holstein.de/dataset?reference=https://musterdatenkatalog.de/def/musterdatensatz/gruenflaechen/baumbestandBaumkataster
• See example SPARQL for Germany

Description

• Description of dct:reference in the German specification: https://www.dcat-ap.de/def/dcatde/2.0/spec/#datensatz-referenziert
• Notes about its use in the convention handbook: https://www.dcat-ap.de/def/dcatde/2.0/implRules/#verweis-auf-referenzobjekte

[jb3-2]

+1 from Basel-Stadt!

Apparently the EU are also planning to add dct:references to their dcat-ap, see https://github.com/SEMICeu/DCAT-AP/issues/231, and this input by Open Data Germany: https://github.com/SEMICeu/DCAT-AP/issues/231#issuecomment-1258120996

Also, people are discussing dct:references and "Musterdatenkatalog" favourably on twitter, to me it seems to be a generally accepted idea, see:

• https://twitter.com/MisterOpenData/status/1557663652316069888
• https://twitter.com/knudmoeller/status/1589631080159916033
• https://twitter.com/search?q=%23Musterdatenkatalog

[tlorusso]

Fully endorse this proposal!