Re: Group endorses SOSA being taken up by schema.org

On 16 June 2017 at 00:35, <Simon.Cox@csiro.au> wrote:

> Ø  There is also interest in figuring out a story for how high-level
> descriptions of datasets relate to their actual data contents (cf. W3C CSVW
> and also W3C Data Cube, which has some bearing on the
> observation/measurement topic).
>
>
>
> You will be watching this I hope? https://www.w3.org/2017/dxwg/
> wiki/Main_Page
>
> In DCAT v1.0 there is only dcat:theme and dcat:keyword. Could do better.
>

Of course. I'm hoping to join the WG if I can free up some time.

On the Google side regarding dataset discovery and
https://developers.google.com/search/docs/data-types/datasets we're
currently consuming basic DCAT (if expressed in json-ld, rdfa, or
microdata) as alongside Schema.org dataset descriptions in any of those. My
sense is that much of the vocabulary needed to improve the state of things
is already around (CSVW, Data Cube, DC, DCAT, Schema.org, SKOS, SOSA, QUDT,
etc.), but there's a need to figure out ways of combining them. So the
likes of https://www.w3.org/TR/shacl/ may prove useful for capturing such
patterns (as well as simple examples / documentation of course). There is
also btw some potential via JSON-LD context files to hide some
multi-namespace complexity via indirection, since the @context can map a
seemingly flat set of terms into several different "behind the scenes"
namespaces.

Dan


>
>
> Simon
>
>
>
> *From:* Dan Brickley [mailto:danbri@google.com]
> *Sent:* Thursday, 15 June, 2017 22:53
> *To:* Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au>
> *Cc:* Armin Haller <armin.haller@anu.edu.au>; SDW WG (public-sdw-wg@w3.org)
> <public-sdw-wg@w3.org>
> *Subject:* Re: Group endorses SOSA being taken up by schema.org
>
>
>
>
>
> Thanks Armin, Simon and all. It is good to have this resolved by the WG,
> and I note also the various qualifying comments and concerns in the
> discussions on the WG list. As Simon points out, Schema.org comes with its
> own heritage/legacy of terms and structures. For example we also already
> have two mechanisms for describing quantities (see https://github.com/
> schemaorg/schemaorg/issues/1390#issuecomment-252202548 and nearby). There
> is also interest in figuring out a story for how high-level descriptions of
> datasets relate to their actual data contents (cf. W3C CSVW and also W3C
> Data Cube, which has some bearing on the observation/measurement topic).
> All of which is just to say that whatever we do in Schema.org may not be
> entirely 1:1 with SOSA, but we shall try to avoid needless divergence, and
> to document (machine readably when possible) the commonalities and
> differences as things mature. And of course we'll credit the WG
> appropriately for any Schema.org terms that are based on this WG's efforts.
>
>
>
> Thanks again,
>
>
>
> Dan
>
>
>
> On 15 June 2017 at 01:25, <Simon.Cox@csiro.au> wrote:
>
> This would be a great outcome.
> Strong endorsement from here.
>
> *However* - the group should be aware that there are already elements in
> schema.org that either overlap or could be confused with SOSA.
>
> http://schema.org/Action ~ (http://www.w3.org/ns/sosa/Actuation |
>                                          http://www.w3.org/ns/sosa/
> Observation |
>                                         http://www.w3.org/ns/sosa/Sampling
> )
> http://schema.org/result ~ http://www.w3.org/ns/sosa/hasResult
> http://schema.org/instrument ~ ( http://www.w3.org/ns/sosa/madeBySensor |
>                                         http://www.w3.org/ns/sosa/
> madeBySampler |
>                                         http://www.w3.org/ns/sosa/
> madeByActuator )
> http://schema.org/endTime ~ http://www.w3.org/ns/sosa/resultTime
>
> and probably quite a few opportunities for alignment in
> http://health-lifesci.0.3-2f.schemaorgae.appspot.com/ such as
> http://health-lifesci.schema.org/procedure ~ http://www.w3.org/ns/sosa/
> usedProcedure
> http://health-lifesci.schema.org/tissueSample ~ http://www.w3.org/ns/sosa/
> hasFeatureOfInterest
> http://health-lifesci.schema.org/SurgicalProcedure ~
> http://www.w3.org/ns/sosa/Actuation (?)
>
> And http://pending.schemaorgae.appspot.com/variableMeasured is closely
> related to http://www.w3.org/ns/sosa/observedProperty though the scope
> (domain) of the former is 'dataset' while the scope of the latter is
> 'observation'.
>
> Simon
>
>
> -----Original Message-----
> From: Armin Haller [mailto:armin.haller@anu.edu.au]
> Sent: Thursday, 15 June, 2017 09:02
> To: public-sdw-wg@w3.org
> Cc: Dan Brickley <danbri@google.com>
> Subject: Group endorses SOSA being taken up by schema.org
>
> Dear all,
>
> In today’s plenary call we had a resolution (https://www.w3.org/2017/06/
> 14-sdw-minutes.html), albeit with few people attending, to endorse SOSA
> being taken up by schema.org. We already had agreement within the SSN
> subgroup and the editors of the SSN document are more than happy to help
> facilitate the adoption of (parts of) SOSA in schema.org.
>
> Kind regards,
> Armin
>
>
>