DCAT - temporal resolution

[dr-shorthair]

Add dcat:temporalResolution as discussed in #84

[agbeltran]

Pre-view: https://rawgit.com/w3c/dxwg/dcat-issue84-tres-simon/dcat/index.html#Property:dataset_temporalresolution

[agbeltran]

I think it would be helpful to expand the description below the example to explain what we are representing with dct:temporal and dcat:temporalResolution.

In the section describing the property, there is a type dct:temporalResolution instead of dcat:temporalResolution.

[agbeltran]

Following the discussion in #84, should we also add a comment referring to DQV for more complex cases?

[davebrowning]

As per meeting minutes https://www.w3.org/2019/02/27-dxwgdcat-minutes#x12

[init-dcat-ap-de]

The definition is
"Minimum time period resolvable in the dataset."
The usage note is
"If the dataset is a time-series this should correspond to the spacing of items in the series. For other kinds of dataset, this property will usually indicate the smallest time difference between items in the dataset."

So the definition changes according to the use case. How do I describe the frequency of the time-series and the resolution of the dataset?
How do I know whether "temporal resolution" is the frequency of a time-series or the resolution?

[makxdekkers]

Good point. The mention of a time-series is a bit iffy, as we have already said we need to treat that issue more fundamentally in future work.
Could we just simplify the usage note to:
"This property will usually indicate the smallest time difference between items in the dataset."
I think this simplified statement could also be seen as including 'spacing of items'.