metardfadublin-core

In a <meta>, what is the correct Dublin Core property name to express distinctly spatial and temporal coverage?


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:

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:

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.


Solution

  • 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="" />