A more explicit allignment between dprod and prov would be helpful to understand the meaning of DataProduct better

[joepvgenuchten]

Looking at the spec as it stands now, I'm turning over the semantics of the DataProduct class over in my head. I always approached a data product as a dcat:Dataset. Defining it as a separate object is interesting. I'm not sure i'm convinced yet (but I am open to being convinced). Particularly, the inputDataset and outputDataset relationships are very reminiscent of prov:used and (the inverse of) prov:wasGeneratedBy which makes it sound like DataProduct is (roughly) equivalent to a prov:Activity. I would expect a (data) product to be the result of an activity, not the activity itself.

Looking at the ttl file, I find that it is in fact a subclass of dcat:Resource (which makes sense to me, it would be good to clarify this in the documentation as well). But if this is so, I would have expected either:

• inputDataset and outputDataset to be modelled using prov semantics (either just as prov:wasDerivedFrom/prov/used or as a subProperty of it).
• or, if the semantics is distinct from prov, that the nuance is clarified at the very least in the documentation, but ideally also through machine readable relationships (something like owl:differentFrom).

[VladimirAlexiev]

@Sveino (electrical CIM/CGMES architect) said a similar thing

[rivettp]

In other words we need to describe how inputDataSet relates to PROV.

[joepvgenuchten]

That, and:

• clarify in the documentation that a data product is a subclass of dcat:Resource (it is in the ttl but not in the documentation)
• clarify the meaning of outputDataset by either describing how it relates to prov or (upon giving it some more thought) p-plan. it seems p-plans p-plan:hasOutputVar (https://www.opmw.org/model/p-plan/#hasOutputVar) might be appropriate

All of those alignments have implications for the (exact) interpretation of what a dprod:DataProduct is, so making explicit if there is there is an alingment or of not ' why not' clarifies its meaning a lot