dcmi / usage

DCMI Usage Board - meeting record and decisions
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Examples for dct:format #72

Closed tombaker closed 5 years ago

tombaker commented 5 years ago

One reviewer points out that the examples for dct:format are only literals, although Format does not have a literal range:

EXAMPLE 1 text/xml. EXAMPLE 2 40 pixels x 512 pixels. EXAMPLE 3 22 in.

The reviewer suggests using, as example, wd:Q489490 aka https://www.wikidata.org/wiki/Q48940, the Wikidata property for:

RDF/XML: syntax defined by the W3C to express an RDF graph as an XML document

tombaker commented 5 years ago

STRAWMAN PROPOSAL

As an example for for dct:format, add:

EXAMPLE 4 https://www.wikidata.org/wiki/Q48940

kcoyle commented 5 years ago

Why not use the URL for text/html? (The Wikidata Q names are not yet well known and not easily readable for this purpose.)

http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML (from the RDF 1.1 Concepts document)

The comment recommends to use a controlled vocabulary, so I think that a majority of the examples should be from controlled vocabularies, which is not the case today. I'd have only one that is a physical size, and I'd go with centimeters, not inches (which is too US centric). Common on library records (in the US) is "23 cm" so that could substitute for one of the size ones.

So I'd go from:

EXAMPLE 1 text/xml. EXAMPLE 2 40 pixels x 512 pixels. EXAMPLE 3 22 in.

to

EXAMPLE 1 text/xml. EXAMPLE 2 http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML EXAMPLE 3 23 cm

aisaac commented 5 years ago

I am not sure about the HTML example from RDF. That URI is for a literal datatype, which could be slightly different from a format. I.e. something that is in http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML is not quite the same as something in text/html. But anyway it should be ok.

That said, and echoing @kcoyle 's point about using an established controlled vocabulary, how about having a statement that would use a more traditional format, and picked from LCSH or AAT? For example http://vocab.getty.edu/aat/300265438

aisaac commented 5 years ago

Call 19-06-2019: we suggest to use a human-friendly URI: http://id.loc.gov/vocabulary/mvidformat/dvd

tombaker commented 5 years ago

DECISION

Examples for dct:format should read:

EXAMPLE 1 text/xml
EXAMPLE 2 http://id.loc.gov/vocabulary/mvidformat/dvd
EXAMPLE 3 23 cm
tombaker commented 5 years ago

DECISION (see above)