DCAT and new paradigms for Data Discovery

Interestingly, this came to my inbox just today:
"the societal forces of which geospatial data is a part ...
continue to change how data can and should be accessed, used, and
shared."  article in Directions online mag, "Successful Geospatial
Data Searching Strategies":
http://www.directionsmag.com/entry/successful-geospatial-data-searching-strategies/503772

On 6/29/17 11:17 AM, Siri Jodha Khalsa
wrote:

cite="mid:***@***.***">

Dear All,
Recent activities aimed at improving W3C's Data Catalog
Vocabulary (
href="https://www.w3.org/TR/vocab-dcat/">DCAT) and its
application bring into focus critical questions about how data
on the web are being described, discovered and accessed. These
issues bear on what the RDA Data Discovery Paradigms Interest
Group, DDPIG, is doing.

OGC’s a
href="http://sdi4apps.eu/2016/06/ogc-announces-dcatgeospatial-metadata-ad-hoc-ogc-tc-dublin-2016-june-22th/">d
hoc on DCAT is looking for ways to integrate metadata from
different data portals (open data portals and geo-portals in
particular) to improve discoverability across different domains,
metadata standards and access protocols. Independently, W3C's
Dataset Exchange Working Group (
href="https://www.w3.org/2017/dxwg/wiki/Main_Page">DXWG)
will soon begin work on revising DCAT.
As pointed out by Andrea Perego in his comments on the DDPIG's
best practices document, W3C has a set of recommendations for
publishing
href="https://www.w3.org/TR/dwbp/">data on the web, with a
second set of recommendations specifically for publishing
moz-do-not-send="true" href="https://www.w3.org/TR/sdw-bp/">spatial
data on the web. The recommendations on metadata are:
class="moz-txt-link-freetext"
href="https://www.w3.org/TR/dwbp/#metadata"
moz-do-not-send="true">https://www.w3.org/TR/dwbp/#metadata
and
href="https://www.w3.org/TR/sdw-bp/#bp-metadata"
moz-do-not-send="true">https://www.w3.org/TR/sdw-bp/#bp-metadata.

Clearly, the ways in which data are being published and sought
for are varied and evolving. Repositories, especially in Europe,
are using RDF, SPARQL and OWL Standards to publish linked open
data. Use of schema.org markup and/or DCAT is increasing as a
way to make data discoverable and metadata harvestable. In
short, the domain of discourse for DDPIG's Use Cases, Best
Practices, Search Relevancy and Metadata Enhancement Task Forces
need to encompass more than just the traditional interfaces to
data portals and repositories.

BTW, the RDA is planning to work with W3C on the revision of
DCAT, led by the Metadata IG, so anyone wishing to contribute
should contact Keith Jeffery.
Best wishes,
SiriJodha

--
Siri-Jodha Singh KHALSA, Ph.D., SMIEEE
National Snow and Ice Data Center
University of Colorado
Boulder, CO 80309-0449 Phone: 1-303-492-1445 GV: 1-303-736-9976
http://cires.colorado.edu/~khalsa
http://orcid.org/0000-0001-9217-5550

--
Siri-Jodha Singh KHALSA, Ph.D., SMIEEE
National Snow and Ice Data Center
University of Colorado
Boulder, CO 80309-0449 Phone: 1-303-492-1445 GV: 1-303-736-9976
http://cires.colorado.edu/~khalsa
http://orcid.org/0000-0001-9217-5550

Dear SiriJodha, dear colleagues,
About work under-way in W3C for a revision to the Data Catalog (DCAT) vocabulary, I would like to inform you that the Dataset Exchange WG (DXWG), in charge of this task, has recently published a call for public comments on the first version of their Use Cases & Requirements document:
http://lists.w3.org/Archives/Public/public-dxwg-wg/2017Dec/0101.html
The collected use cases and requirements will be used to revise DCAT, but also to as a basis for the other deliverables - which include guidelines for the definition of application profiles.
It is worth mentioning that, although the original version of DCAT was mainly addressing requirements from government data, with a domain-independent perspective, many of the newly collected use cases cover research data as well as domain-specific requirements (e.g., quite a few of them relate to geospatial data, based on the design and implementation experience around GeoDCAT-AP).
Comments should be sent to the DXWG mailing list: ***@***.***
Best,
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.
- Show quoted text -From: sjsk=***@***.***-groups.org [sjsk=***@***.***-groups.org] on behalf of sjskhalsa [***@***.***]
Sent: 29 June 2017 11:25
To: ***@***.***-groups.org
Subject: [datadiscovery] DCAT and new paradigms for Data Discovery
Dear All,
Recent activities aimed at improving W3C's Data Catalog Vocabulary (DCAT) and its application bring into focus critical questions about how data on the web are being described, discovered and accessed. These issues bear on what the RDA Data Discovery Paradigms Interest Group, DDPIG, is doing.
OGC’s ad hoc on DCAT is looking for ways to integrate metadata from different data portals (open data portals and geo-portals in particular) to improve discoverability across different domains, metadata standards and access protocols. Independently, W3C's Dataset Exchange Working Group (DXWG) will soon begin work on revising DCAT.
As pointed out by Andrea Perego in his comments on the DDPIG's best practices document, W3C has a set of recommendations for publishing data on the web, with a second set of recommendations specifically for publishing spatial data on the web. The recommendations on metadata are: https://www.w3.org/TR/dwbp/#metadata and https://www.w3.org/TR/sdw-bp/#bp-metadata.
Clearly, the ways in which data are being published and sought for are varied and evolving. Repositories, especially in Europe, are using RDF, SPARQL and OWL Standards to publish linked open data. Use of schema.org markup and/or DCAT is increasing as a way to make data discoverable and metadata harvestable. In short, the domain of discourse for DDPIG's Use Cases, Best Practices, Search Relevancy and Metadata Enhancement Task Forces need to encompass more than just the traditional interfaces to data portals and repositories.
BTW, the RDA is planning to work with W3C on the revision of DCAT, led by the Metadata IG, so anyone wishing to contribute should contact Keith Jeffery.
Best wishes,
SiriJodha
--
Siri-Jodha Singh KHALSA, Ph.D., SMIEEE
National Snow and Ice Data Center
University of Colorado
Boulder, CO 80309-0449 Phone: 1-303-492-1445 GV: 1-303-736-9976
http://cires.colorado.edu/~khalsa
http://orcid.org/0000-0001-9217-5550