For Distribution, spatial resolution [0..1] represents the spatial resolution of the described file.
For Data Service – spatial resolution [0..*] describes the capabilities of the data service, i.e. in which spatial resolutions it can serve data.
For Dataset – spatial resolution [0..*] describes the spatial resolution of the original data in the dataset, i.e. regardless of how it is distributed using distributions.
In GeoDCAT-AP 3.0.0 revision, a discussion about the relations and cardinality of Spatial resolution on different classes (Dataset, Data Service, Distribution) was had, resulting in resolution of https://github.com/SEMICeu/GeoDCAT-AP/issues/100.
It resulted in the following conclusions:
[0..1]
represents the spatial resolution of the described file.[0..*]
describes the capabilities of the data service, i.e. in which spatial resolutions it can serve data.[0..*]
describes the spatial resolution of the original data in the dataset, i.e. regardless of how it is distributed using distributions.This is now in conflict with DCAT-AP 3.0, where for Dataset, the spatial resolution as a cardinality
[0..1]
(related to https://github.com/SEMICeu/DCAT-AP/issues/372)