Re: [dxwg] Distributions, services and implementation-resources

@smrgeoinfo asked:
> Isn't a dcat catalog just one more variety of registry?

Not quite. The way it is modelled the `dcat:Catalog` is essentially just the _contents_ - a list of catalogued resources. It is a subclass of `dcat:Dataset`. Some governance and lifecycle factors are supported by the `dcat:Records` that are optionally included, but I would argue that a lot more is needed to make a registry. 

Note also in Figure 1 that `dcat:DiscoveryService` is related to contents that it exposes by the value of its `dcat:servesDataset` property - this was one of the reasons for the subclass relationship between dcat:Catalog and dcat:Dataset. 



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Received on Thursday, 15 November 2018 21:42:03 UTC