W3C home > Mailing lists > Public > public-sdwig@w3.org > November 2019

New editor's draft of SSN-Extensions available

From: Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au>
Date: Tue, 19 Nov 2019 10:39:39 +0000
To: "public-sdwig@w3.org" <public-sdwig@w3.org>
CC: Ilkka Rinne <ilkka.rinne@spatineo.com>, Kathi Schleidt <kathi@datacove.eu>, "Stephen Richard (smrTucson@gmail.com)" <smrTucson@gmail.com>, "'Douglas Fils (dfils@oceanleadership.org)'" <dfils@oceanleadership.org>, Siddeswara Guru <s.guru@uq.edu.au>, "Nick Car (nicholas.car@surroundaustralia.com)" <nicholas.car@surroundaustralia.com>, Rob Atkinson <rob.atkinson@surroundaustralia.com>
Message-ID: <ME2PR01MB5362A6F51F5F2511FBE30343884C0@ME2PR01MB5362.ausprd01.prod.outlook.com>
Colleagues -

A new 'Editor's Draft' of the SSN-EXT ontology is available at https://w3c.github.io/sdw/proposals/ssn-extensions/
Compared with the last Public Working Draft https://www.w3.org/TR/vocab-ssn-ext/ there have been a substantial set of changes to the ontology and the document, the most important of which are:

  1.  The presentation within the document now starts with worked examples, and then moves on to the vocabulary description
  2.  Two additional 'convenience' properties :hasOriginalSample and :isUltimateSampleOf to help relate a sample to the resources earlier in the sample-prep chain, which are usually considered important for discovery and collation
  3.  The SPARQL rules for finding the ultimate feature-of-interest and to copy-down properties from a collection to its members have been streamlined
  4.  There are tests for all the SPARQL
  5.  There are RDF representations of all the examples
  6.  I am proposing that these extensions be moved into the SOSA namespace, rather than a new namespace

The last item might raise some eyebrows. This is a change from the PWD. My thinking here is that these extensions should be rolled into the base vocabulary in dues course, so it is better that they share the same namespace. I tested out the ssn-ext vocabulary with a user group (TERN) who are harmonizing ecology and biodiversity observations. It all worked very well, but yet again one thing that always confuses new adopters is too many namespaces! So anything we can do to relieve that is likely to help adoption. Remember - all schema.org elements - whether experimental, proposed or adopted, are in a single namespace. And as the SSN extensions are packaged in a separate RDF _graph_ (RDF file) no-one has to load them if they don't want to encounter them.

I have a little extra work to do on the document, primarily in the alignments section, but I think it is good enough for review now and I welcome comments. If you have comments which can be expressed as discrete issues, then please create a GitHub issue here: https://github.com/w3c/sdw/issues and tag it [ssn-ext]. Else kick off a conversation on this email list.

From a process point of view, I think the next step would be for this IG to agree to release it as a new Public Working Draft, replacing the previous one which was published a year ago and triggered some discussion, primarily in GitHub issues. The goal is to get the document published as a W3C Note / OGC Discussion Paper.

Thanks for your comments.


Simon J D Cox
Research Scientist - Environmental Informatics<https://research.csiro.au/ei>
Team Leader - Environmental Information Infrastructure
CSIRO Land and Water<http://www.csiro.au/Research/LWF>

E simon.cox@csiro.au<mailto:simon.cox@csiro.au> T +61 3 9545 2365 M +61 403 302 672
   Mail: Private Bag 10, Clayton South, Vic 3169
   Visit: Central Reception, Research Way, Clayton, Vic 3168  ///honey.zebra.chip<https://w3w.co/honey.zebra.chip>
   Deliver: Gate 3, Normanby Road, Clayton, Vic 3168
Twitter @dr_shorthair<https://twitter.com/dr_shorthair>
CSIRO acknowledges the Traditional Owners of the land, sea and waters, of the area that we live and work on across Australia. We acknowledge their continuing connection to their culture and we pay our respects to their Elders past and present.

The information contained in this email may be confidential or privileged. Any unauthorised use or disclosure is prohibited. If you have received this email in error, please delete it immediately and notify the sender by return email. Thank you. To the extent permitted by law, CSIRO does not represent, warrant and/or guarantee that the integrity of this communication has been maintained or that the communication is free of errors, virus, interception or interference.
CSIRO Australia's National Science Agency  |  csiro.au<https://www.csiro.au/>
Received on Tuesday, 19 November 2019 10:40:07 UTC

This archive was generated by hypermail 2.4.0 : Thursday, 24 March 2022 20:31:02 UTC