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Re: Issues in BP13 ("Include spatial metadata in dataset metadata")

From: Linda van den Brink <l.vandenbrink@geonovum.nl>
Date: Fri, 5 May 2017 11:36:47 +0000
To: "andrea.perego@ec.europa.eu" <andrea.perego@ec.europa.eu>
CC: "jeremy.tandy@gmail.com" <jeremy.tandy@gmail.com>, "public-sdw-wg@w3.org" <public-sdw-wg@w3.org>
Message-ID: <8466F98B-11A7-4F84-A2F0-F4B99AA7DDA9@geonovum.nl>
Yes, please do!

> Op 5 mei 2017 om 12:13 heeft "andrea.perego@ec.europa.eu" <andrea.perego@ec.europa.eu> het volgende geschreven:
> 
> Linda, Jeremy,
> 
> I made a check of BP13, and I found some issues that I think need to be addressed before freezing the document:
> 
> http://w3c.github.io/sdw/bp/#spatial-info-dataset-metadata 
> 
> These are mainly concerning the bullet points at the end of section "Possible approach to implementation". I list them below.
> 
> Bullet point #2:
> 
> [[
> Again, use [VOCAB-DCAT], but instead of a reference to a named place, use a set of coordinates to specify the boundaries of the area either as a bounding box (add glossary ref) or a polygon.
> ]]
> 
> Two issues here:
> - About "(add glossary ref)", actually, we do not have a glossary entry for "bounding box", although it would be good to have, along with another one for "centroid", also because these notions are mentioned throughout the BP doc, and now specifically discussed in BP6. Otherwise we just delete the text, and maybe link to the bbox definition in Wikipedia.
> - About "use a set of coordinates to specify the boundaries of the area either as a bounding box (add glossary ref) or a polygon", DCAT does not provide guidance on how to do that (in the examples, it uses a Geonames URI), and this was one of the gaps to be addressed when developing GeoDCAT-AP. We actually have an example in the BP doc on how to do that, so I think it would be good to add a link.
> 
> Based on what said above, I would propose to revise  the text as follows:
> 
> [[
> Again, use [VOCAB-DCAT], but instead of a reference to a named place, use a set of coordinates to specify the boundaries of the area either as a bounding box or a polygon, e.g., by using the approach defined in [GeoDCAT-AP] - see Example 15 in Best practice 6.
> ]]
> 
> Bullet point #4:
> 
> [[
> "Use geospatial ontologies (see W3C Geospatial Incubator Group (GeoXG)'s report) to describe the spatial data for the datasets."
> ]]
> 
> I guess we should now refer also to the spatial data vocabularies in Appendix A. If we still keep the ref to the GeoXG report, I would suggest we add a bib entry in bpcong.js.
> 
> The proposed revision should be something like:
> 
> [[
> "Use geospatial ontologies to describe the spatial data for the datasets (see the matrix of spatial data vocabularies in Appendix A[ and W3C Geospatial Incubator Group (GeoXG)'s report [XGR-GEO-ONT])."
> ]]
> 
> 
> If you're happy with these revisions, I can take care of creating the relevant PRs.
> 
> Thanks
> 
> Andrea
> 
> ----
> Andrea Perego, Ph.D.
> Scientific / Technical Project Officer
> European Commission DG JRC
> Directorate B - Growth and Innovation
> Unit B6 - Digital Economy
> Via E. Fermi, 2749 - TP 262
> 21027 Ispra VA, Italy
> 
> https://ec.europa.eu/jrc/
> 
> ----
> The views expressed are purely those of the writer and may
> not in any circumstances be regarded as stating an official
> position of the European Commission.
> 
> 
Received on Friday, 5 May 2017 11:37:38 UTC

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