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SEMICeu / DCAT-AP

This is the issue tracker for the maintenance of DCAT-AP
https://joinup.ec.europa.eu/solution/dcat-application-profile-data-portals-europe
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HVD: Risk of overlap for Quality of service with generic documentation on data services #310

Closed matthiaspalmer closed 6 months ago

matthiaspalmer commented 9 months ago

At least since 1.1 there have been a foaf:page property on dcat:Dataset and dcat:Distribution allowing for a way to point to external documentation. Note that this is not part of DCAT, it is an addition in DCAT-AP.

With the inclusion of Data services in DCAT-AP2.0 only a few properties of all potential properties from dcat:Resource where included, likely in part due to lack of good use-cases and the decision to not include the intermediate class (and newly introduced).

Since some time we have argued for the inclusion of more properties on Data services, e.g. see #272. One of the properties argued to be included is foaf:page to correspond to documentation just like we have on datasets.

If this view is accepted, either now or in the future, this presents a conflict with the use of foaf:page for "Quality of service". Of course it could be argued that "Quality of service" is nothing more than a special case of documentation. But, since this is regulated by law we may end up in a situation where it won't be possible to distinguish if a data service complies with the HVD regulation or not if foaf:page is used for the wider purpose.

Hence, a suggestion would be to introduce another subproperty of foaf:page to correspond to "Quality of service", for example: http://data.europa.eu/r5r/qualityOfService

matthiaspalmer commented 9 months ago

There is also a small typo, the link on "Quality of service" is foaf:Page instead of foaf:page.

bertvannuffelen commented 9 months ago

@matthiaspalmer thanks for pointing this historic reference out.

This is yet another case where "subproperties" are to be considered.

We have roughly 2 options here:

a) we introduce a property documentation (foaf:page) as generic property in DCAT-AP 3.0.0 as suggested earlier. And we specialise the usage note in DCAT-AP HVD: "also quality of service documents can be included." (So the property quality-of-service defacto disappears)

b) we introduce in HVD the subproperty to already make a distinction between different kinds of documentations.