I have an application where some <meta>
must be included to the pages for RDFa.
I had to merely report the properties stated by my client in its requirement document.
All was fine for many properties like dc:title
, dc:subject
, etc.
But two requirements appeared more complicated for me. They were precisely expressed like this:
dc:coverage (spatial)
dc:coverage (temporal)
Being not a guru about RDFa, I looked for more information and found that in the real HTML <meta>
it could be expressed like this:
dc:coverage.spatial
dc:coverage.temporal
But now a third party representing the crawler that will use my page says me that those properties don't exist!
So I can't figure out what I should actually write in place.
Dublin Core defined two sub-properties for the coverage
property: spatial
and temporal
. This parent-child relationship is specified in the RDF definition; there is no need to refer to the super-property when using its sub-property.
If it’s a spatial value:
<meta property="dc:spatial" content="" />
If it’s a temporal value:
<meta property="dc:temporal" content="" />
If it’s unknown whether it’s a spatial or temporal value:
<meta property="dc:coverage" content="" />