[ckan-dev] geo data modelling

[Philippe Duchesne]

Hello Armin,

thank you for this information.
However, browsing the geodata.gov.de site, i don't see an example of the
mapping you mention. Can you point me to an example?

Besides, while having a fairly good knowledge of OGC specs, i'm not sure i
understand what you mean by a "fictive" feature type. Can you clarify?

thank you,

--p.



On Mon, Nov 25, 2013 at 11:40 AM, Armin Retterath <armin.retterath at gmail.com
> wrote:

> hello phillip,
>
> we implemented a mapping between ogc resources and ckan objects. it is
> relevant, that you map a dataset as dataset and the corresponding services
> as resource endpoints. you may have a look at http://www.govdata.de.
> in the ogc metadata concept, there is a relation from the service content
> (layer/featuretype) to one or more dataset metadata. if you don't have the
> relation, you may map a fictive layer/featuretype as a dataset object.
> the problem with the ogc metadata is, that the relations are not well
> maintained or don't exists. maybe the EU INSPIRE Directive will produce
> more consistent metadata in this point of view.
>
> if you have further questions or need some practical examples please ask
> ;-)
>
>
> hope this helps a little bit
>
> regards
> armin
>
>
> 2013/11/25 Philippe Duchesne <philippe at okfn.be>
>
>>
>> hello all,
>>
>> i have a data model design question for the geo-aware folks:
>>
>> i find the current way of storing W*S services in the CKAN model not
>> adequate, in the sense that OGC resources (feature types, layers, ...)
>> don't get captured.
>> Rather, whole services are mapped into datasets, with resources
>> containing capabilities, legend, and so forth.
>>
>> Wouldn't it be better to
>>     - have a dataset per OGC service, and then a resource per
>> layer/feature type
>> or  - have a dataset per layer/feature type, as these deserve metadata on
>> their own, and then a 'related' link to the service dataset
>>
>> does anyone else feel that need?
>> are there any plans for something like that?
>>
>> thanks,
>>
>> Philippe Duchesne
>> OKFN.be
>>
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