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w3c / rdf-star

RDF-star specification
https://w3c.github.io/rdf-star/
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Add several paragraphs and examples to Overview section. #69

Closed bobdc closed 3 years ago

bobdc commented 3 years ago

Note that some of the original Overview content has been commented out as opposed to removed. See the comment I added to it.

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pfps commented 3 years ago

The lead example needs to be changed. Dates are not part of the core of RDF. Even if they were, dates in date-aware systems are not strings. An example that uses only the notions are are required to be supported in RDF is needed.

pfps commented 3 years ago

RDF does not allow subjects or objects of triples to be triples. RDF reification is something different - instances of rdf:Statement have an intended meaning that is some sort of description of an RDF triple. The distinction is subtle but profound and if this document is going to make any claim about RDF reification it needs to a completely correct claim.

pchampin commented 3 years ago

@pfps the running example in the RDF 1.1 Primer uses dates.

An example that uses only the notions are are required to be supported in RDF is needed

Furthermore, the example does not rely on any special understanding or recognizing of the date datatype. It is just a literal; How is it not supported in RDF?

pfps commented 3 years ago

The example uses dates, as far as I can tell. These are not necessarily supported in RDF and could be considered to be just like "2004-04-03"^^ex:junk in some RDF systems. Either that or the date in the example is just a string, which is worse. So either use something that is just a string or avoid literals.

pchampin commented 3 years ago

This was discussed during today's call: https://w3c.github.io/rdf-star/Minutes/2020-12-18.html#item03

pchampin commented 3 years ago

Thanks @bobdc , good to go :)

bobdc commented 3 years ago

Thank you!

hartig commented 3 years ago

Thanks @bobdc for your efforts!

bobdc commented 3 years ago

I just noticed that we never updated the "After declaring a prefix URI" paragraph to reference the the new familyName and jobTitle triples. Should I fix that in a separate pull request or can someone add that in another update?