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Keywords property of CreativeWork #347
The current instruction on http://schema.org/keywords is "Keywords or tags used to describe this content. Multiple entries in a keywords list are typically delimited by commas."
I'd like to suggest that we also allow the keywords property to be used multiple times within a Type when describing something (and update the informative text on http://schema.org/keywords to describe this), as this will allow easier parsing by a client. For example:
This would also allow for better LOD implementation (as proposed in #346 ) as follows:
I'm not sure and it's probably one of those grey areas open to interpretation (at least for me!). 'about' expects an instance of schema.org/Thing, not a URL, so it's not ideal for use for linked data. Yes, you could mark-up an instance of 'Thing' and then use that instance's 'sameAs' property to implement LOD, but that starts to produce messy & extraneous markup (example below):
I guess the question is: what's the difference between "about" and "keywords" - while described in different words ("the subject matter of the content" vs "Keywords or tags used to describe this content") they would appear to be duplicates/synonyms under that interpretation.
I've always presumed that 'about' was intended to be a single reference to another schema.org 'object' on the same web page (since it has to be an instance of schema.org/Thing) that is the main subject of the item, and that 'keywords' were a set of multiple subject classifications (like tags as used on blogs, and so by extension could be used for controlled vocabularies such as Getty AAT, Library of Congress Subject Headings, etc).
Thinking of how I was going to use them, I would be using them with a VisualArtwork object and using them with the Getty AAT, like so:
I'd also be eager to use it to enable LOD on the tags on my blogposts.
As everything is effectively a Thing, I think you are being to literal
In the Works (e.g. http://worldcat.org/entity/work/data/5925259), and
There is a semantic discussion to have as to if the URIs are for the
Whatever, in the current pragmatic world that Schema operates within, it
As to keywords, I believe they are just 'words', and/or lists of words,
On 19 February 2015 at 12:05, Paul Watson firstname.lastname@example.org wrote:
Looking at the markup on the worldcat site it looks like this would be OK:
Is that correct? If so then I'd be happy to use "about" instead of "keywords", and will close this issue since it was due to my misinterpretation of the use of keywords/about.
That looks good to me