[dxwg] distribution > dcat:accessURL (#1334)

bertvannuffelen has just created a new issue for https://github.com/w3c/dxwg:

== distribution > dcat:accessURL ==
In https://www.w3.org/TR/vocab-dcat-2/#Property:distribution_access_url

> dcat:accessURL matches the property-chain dcat:accessService/dcat:endpointURL. In the RDF representation of DCAT this is axiomatized as an OWL property-chain axiom.

is stated.

Why is this stated in this way, and why is it axiomatized? This brings a very strict one-on-one relationship between dataservice and distribution which I do not think is often the case.

In many services the dataservice endpointurl points to many datasets, and thus many distributions. 
Eg. consider https://docs.github.com/en/rest/reference all are on the same endpoint (https://api.github.com), but for each entity there is a different dataset.  See https://docs.github.com/en/rest/reference/projects where there is a collection of projects per organisation and the collection of all projects.  So I have for the same endpoint many access urls. 

Also inversely, starting from the distribution, the accessURL for a distribution of github projects is https://docs.github.com/en/rest/reference/projects and not https://api.github.com/projects.

The above axiomatisation is maybe possible in some (selective) contexts, but it is for me more a severe restriction than a gain.
Also this axiomatisation creates a binding between distribution and data service which should be clarified at the level of Distribution. 






Please view or discuss this issue at https://github.com/w3c/dxwg/issues/1334 using your GitHub account


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Received on Monday, 22 March 2021 08:36:22 UTC