[ckan-dev] CKAN-specific considerations for DCAT-AP

Tue Dec 20 15:10:06 UTC 2016

Hi Florian,

I'm part of the team that implemented DCAT-AP Switzerland for
opendata.swiss, an CKAN-based opendata portal for Switzerland.

We rely on ckanext-dcat, you can find the source here:
https://github.com/opendata-swiss/ckanext-switzerland/blob/master/ckanext/switzerland/dcat/profiles.py
DCAT-AP Switzerland is based on the European DCAT-AP standard, but has some
fields that are used differently. As a help for the data publishers we
setup a handbook with the documentation, so that they have a reference
guide: http://handbook.opendata.swiss/en/library/ch-dcat-ap

The portal provides 3 ways for data provides to add new datasets:

1. Add them manually using the WordPress backend of opendata.swiss (the
source code of this backend can be found here:
https://github.com/opendata-swiss/wp-ckan-backend)
2. Upload a valid DCAT-AP Switzerland XML in the WordPress backend of
opendata.swiss
3. Provide a DCAT-AP Switzerland RDF harvester source, we then use the
harvester provided by ckanext-dcat to harvest these data providers (
https://github.com/ckan/ckanext-dcat#rdf-dcat-harvester)

Our learnings:
- Get feedback from the data providers early on
- If possible, provide a validator for your DCAT-AP profile
- If possible, provide an export functionality for manually entered data,
so that less experienced users have an easy way to "generate" a valid
example

Feel free to contact me if you have further questions.

Best regards Stefan

On Mon, Dec 19, 2016 at 10:03 AM, <Florian.Brucker at mb.karlsruhe.de> wrote:

> Dear Tim,
>
> your profile would definitely be a great help! Since others may be in the
> same situation as me you could also think about posting the files on GitHub
> or something similar.
>
>
> Regards,
> Florian
>
>
> "ckan-dev" <ckan-dev-bounces at lists.okfn.org> schrieb am 16.12.2016
> 14:58:05:
>
> > Von: Timothy Giles <timothy.giles at slu.se>
> > An: CKAN Development Discussions <ckan-dev at lists.okfn.org>,
> > Datum: 16.12.2016 14:58
> > Betreff: Re: [ckan-dev] CKAN-specific considerations for DCAT-AP
> > Gesendet von: "ckan-dev" <ckan-dev-bounces at lists.okfn.org>
> >
> > I can send you are profile, but they are specific to our metadata schema.
> >
> > I cant say I am an expert on DCAT AP – the most confusing issue is
> > the various examples I find around the web that don’t work with
> > validators! We want to connect to oppna data .se and they have
> > examples but these don’t validate fully in their sandbox system…
> > But, it is still pretty easy to change. I will send you our schema
> > document, json and the profile early next week.
> >
> > Regards Tim
> >
> > From: ckan-dev [mailto:ckan-dev-bounces at lists.okfn.org
> <ckan-dev-bounces at lists.okfn.org>] On Behalf Of
> > Florian.Brucker at mb.karlsruhe.de
> > Sent: den 16 december 2016 13:29
> > To: CKAN Development Discussions <ckan-dev at lists.okfn.org>
> > Subject: Re: [ckan-dev] CKAN-specific considerations for DCAT-AP
> >
> > Dear Timothy,
> >
> > thanks for the feedback! Nice to hear that things are working well.
> > Is there anything that worked particularly well or not? Anything to
> > watch out for when defining the profile?
> >
> > Are your adaptions to ckanext-dcat available somewhere?
> >
> >
> > Regards,
> > Florian
> >
> >
> >
> >
> > "ckan-dev" <ckan-dev-bounces at lists.okfn.org> schrieb am 16.12.2016
> 11:17:28:
> >
> > > Von: Timothy Giles <timothy.giles at slu.se>
> > > An: CKAN Development Discussions <ckan-dev at lists.okfn.org>,
> > > Datum: 16.12.2016 11:17
> > > Betreff: Re: [ckan-dev] CKAN-specific considerations for DCAT-AP
> > > Gesendet von: "ckan-dev" <ckan-dev-bounces at lists.okfn.org>
> > >
> > > Hi Florian,
> > >
> > > We use CKANEXT-DCAT as a base and have a custom DCAT AP 1.1 profile
> > > defined. It is easy to do, using the current profile as a base. If
> > > you know DCAT and have the profile mapped out already, it is a few
> > > hours work to implement.
> > >
> > > Regards Timothy
> > >
> > > From: ckan-dev [mailto:ckan-dev-bounces at lists.okfn.org
> <ckan-dev-bounces at lists.okfn.org>] On Behalf Of
> > > Florian.Brucker at mb.karlsruhe.de
> > > Sent: den 16 december 2016 11:10
> > > To: ckan-dev at lists.okfn.org
> > > Subject: [ckan-dev] CKAN-specific considerations for DCAT-AP
> > >
> > > Hi!
> > >
> > > The German council responsible for the metadata standard for open
> > > government data  has recently decided to develop a custom DCAT-AP
> > > profile "DCAT-AP.DE". That profile will be used for collecting and
> > > exchanging meta data in the open data portals of the German
> > > administration (on federal, state and municipal level). Many of the
> > > German open data portals are CKAN-based, so I'm wondering if there's
> > > anything CKAN-specific that we should keep in mind while developing
> > > DCAT-AP.DE. I'm aware of ckanext-dcat but have never used it myself.
> > >
> > > Does anybody have experiences with using CKAN for DCAT-AP and
> > > profiles derived from it?
> > >
> > > Thanks for any input!
> > >
> > >
> > > Regards,
> > > Florian_______________________________________________
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> > > ckan-dev at lists.okfn.org
> > > https://lists.okfn.org/mailman/listinfo/ckan-dev
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