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RE: Updated SOSA core RE: SOSA core - procedures vs devices

From: Kerry Taylor <kerry.taylor@anu.edu.au>
Date: Wed, 27 Jul 2016 00:18:50 +0000
To: Rob Atkinson <rob@metalinkage.com.au>
CC: "public-sdw-wg@w3.org" <public-sdw-wg@w3.org>
Message-ID: <PS1PR06MB17406344E259194A37086294A40F0@PS1PR06MB1740.apcprd06.prod.outlook.com>
Agreed! This looks to me very little like K’s proposal as  I understood it. Am in the middle of composing a longer version of something like this.

>“But if we really have a tabula rasa,”
We do not – refer to the charter please.

From: Rob Atkinson [mailto:rob@metalinkage.com.au]
Sent: Wednesday, 27 July 2016 10:08 AM
To: Simon.Cox@csiro.au; Armin Haller <armin.haller@anu.edu.au>; janowicz@ucsb.edu; jlieberman@tumblingwalls.com
Cc: danh.lephuoc@tu-berlin.de; public-sdw-wg@w3.org; Kerry Taylor <kerry.taylor@anu.edu.au>
Subject: Re: Updated SOSA core RE: SOSA core - procedures vs devices

Hi - whilst I'm not as familiar with the details the amount of modules and the logical structure fit my expectation.  I think however that the explanations of these will need some work to make them accessible. In particular sosa-om and sosa-sam explanations only help if you are intimately familiar with these. It would help even at this early stage to perhaps describe what these contain, and why they are not part of the core. If what they are is an extension of sosa-core that does not define new entities, but uses additional expressivity available in a language then perhaps we can come up with a naming convention that reflects the role of each module? eg sosa-ssn-align ?

If modules are doing multiple things - like extending scope, adding axioms and performing alignments (declaring equivalent classes) then this is a departure from Krzysztof's proposal - which may not be a bad thing but means that the modularisation strategy needs to be re-articulated and taken into account.


On Wed, 27 Jul 2016 at 08:28 <Simon.Cox@csiro.au<mailto:Simon.Cox@csiro.au>> wrote:
Currently Sensing is a subclass of Observing (or Observation), which is a subclass of Activity. That was my proposed ordering – seeing ‘sensing’ as a subset of ‘observing’ to be consistent with OGC usage, where ‘Observation’ covers not only sensing but also forecasting, simulation, human-observing (which is a combination of sensing and application of knowledge).

But if we really have a tabula rasa, then we should consider the best terminology and correct hierarchy – maybe ‘estimating’ is a more general term.

But definitely the order in that hierarchy should be resolved.


From: Armin Haller [mailto:armin.haller@anu.edu.au<mailto:armin.haller@anu.edu.au>]
Sent: Wednesday, 27 July 2016 7:58 AM
To: janowicz@ucsb.edu<mailto:janowicz@ucsb.edu>; Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au<mailto:Simon.Cox@csiro.au>>; jlieberman@tumblingwalls.com<mailto:jlieberman@tumblingwalls.com>
Cc: danh.lephuoc@tu-berlin.de<mailto:danh.lephuoc@tu-berlin.de>; public-sdw-wg@w3.org<mailto:public-sdw-wg@w3.org>; Kerry Taylor <kerry.taylor@anu.edu.au<mailto:kerry.taylor@anu.edu.au>>

Subject: Re: Updated SOSA core RE: SOSA core - procedures vs devices

The proposal we arrived to now looks good to me.

The only change, where I second Simon is, that we should rename Actuation to Actuating. That is then aligned to Sensing and also implies an Activity. The same applies to Observation which I would rename Observing. Although, I am not sure if we need the Observing class in the core if we have Sensing anyway.

From: Krzysztof Janowicz <janowicz@ucsb.edu<mailto:janowicz@ucsb.edu>>
Reply-To: "janowicz@ucsb.edu<mailto:janowicz@ucsb.edu>" <janowicz@ucsb.edu<mailto:janowicz@ucsb.edu>>
Date: Wednesday, 27 July 2016 6:34 am
To: "Simon.Cox@csiro.au<mailto:Simon.Cox@csiro.au>" <Simon.Cox@csiro.au<mailto:Simon.Cox@csiro.au>>, Armin Haller <armin.haller@anu.edu.au<mailto:armin.haller@anu.edu.au>>, "jlieberman@tumblingwalls.com<mailto:jlieberman@tumblingwalls.com>" <jlieberman@tumblingwalls.com<mailto:jlieberman@tumblingwalls.com>>
Cc: "danh.lephuoc@tu-berlin.de<mailto:danh.lephuoc@tu-berlin.de>" <danh.lephuoc@tu-berlin.de<mailto:danh.lephuoc@tu-berlin.de>>, "public-sdw-wg@w3.org<mailto:public-sdw-wg@w3.org>" <public-sdw-wg@w3.org<mailto:public-sdw-wg@w3.org>>, Kerry Taylor <kerry.taylor@anu.edu.au<mailto:kerry.taylor@anu.edu.au>>
Subject: Re: Updated SOSA core RE: SOSA core - procedures vs devices

I made some cosmetic changes and pushed them to github. I am going to make another series of changes that are a bit bigger and thus will leave them in https://github.com/w3c/sdw/blob/kjanowicz-ssn/ssn/rdf/sosa.ttl for now until we agree on them. Most of this is from our last discussion about procedures and platforms.


On 07/18/2016 10:01 PM, Simon.Cox@csiro.au<mailto:Simon.Cox@csiro.au> wrote:
I’ve just pushed an update to the SOSA Core ontology

in particular https://github.com/w3c/sdw/blob/simon-ssn/ssn/rdf/sosa.ttl

This includes the hierarchy shown on the wiki page https://www.w3.org/2015/spatial/wiki/SOSA_Ontology

I’ve cleaned up the class names a bit, and added documentation on all elements.



Krzysztof Janowicz

Geography Department, University of California, Santa Barbara

4830 Ellison Hall, Santa Barbara, CA 93106-4060

Email: jano@geog.ucsb.edu<mailto:jano@geog.ucsb.edu>

Webpage: http://geog.ucsb.edu/~jano/

Semantic Web Journal: http://www.semantic-web-journal.net

Received on Wednesday, 27 July 2016 00:19:34 UTC

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