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RE: ISSUE-5 (Separation of examples): Delivery of the SSN XG ontology and of examples in separate files

From: Simon Cox <simon.cox@jrc.ec.europa.eu>
Date: Tue, 8 Jun 2010 10:34:06 +0200
To: "'Michael Compton'" <Michael.Compton@csiro.au>, "'Semantic Sensor Network Incubator Group WG'" <public-xg-ssn@w3.org>
Message-ID: <C95B49FCC80E4047BCDF37E0F0CE908A@H07.jrc.it>
This discussion highlights the need for ontology-stores to always keep track
of the prevenance of triples. 

The classic way to do this is reification of triples, of course, but for
somewhat inscrutable reasons that fell out of favour almost as soon as it
was conceived. 

In fact most triple-stores are actually quad-stores and already include an
extra field which could in principle be used to support this. 
Not clear that the APIs make it so easy, however. 

Simon Cox

European Commission, Joint Research Centre 
Institute for Environment and Sustainability 
Spatial Data Infrastructures Unit, TP 262 
Via E. Fermi, 2749, I-21027 Ispra (VA), Italy 
Tel: +39 0332 78 3652 
Fax: +39 0332 78 6325 

SDI Unit: http://sdi.jrc.ec.europa.eu/ 
IES Institute: http://ies.jrc.ec.europa.eu/ 
JRC: http://www.jrc.ec.europa.eu/
Any opinions expressed are personal unless otherwise indicated. 

-----Original Message-----
From: public-xg-ssn-request@w3.org [mailto:public-xg-ssn-request@w3.org] On
Behalf Of Michael Compton
Sent: Tuesday, 8 June 2010 07:10
To: Semantic Sensor Network Incubator Group WG
Subject: Re: ISSUE-5 (Separation of examples): Delivery of the SSN XG
ontology and of examples in separate files

The ontology version sent to the mailing list in
  was sent, and I think clearly labelled, as part of the discussion (issue
4) on how we might model measurement capabilities.  It was never sent as a
'version' of the ontology.  It should be seen as an artefact of our
discussions on the modelling options, and to the last of my knowledge was
only ever available through pages that labelled it as such.

I of course agree that examples of the ontologies use and versions of the
ontology should be clearly labelled in our wiki pages.

There is a version of the ontology that is the result of the groups
discussion on measurement capabilities.  I hadn't sent it to the group
because I wanted to start correctly commenting/annotating/referencing the
ontology; however, there hasn't been a decision yet on how to do that.

In any event, because of the apparent potential confusion, I have now sent
the ontology that includes the results of all our discussion up to and
including measurement capabilities.  Once there is agreement on how to do
it, we can start to build the wiki pages of definitions and explanations and
reference this to and from the ontology.  I guess issue 7 will be part of
this process.


On 08/06/2010, at 0:06 , Semantic Sensor Network Incubator Group Issue
Tracker wrote:

> ISSUE-5 (Separation of examples): Delivery of the SSN XG ontology  
> and of examples in separate files
> http://www.w3.org/2005/Incubator/ssn/track/issues/5
> Raised by: Laurent Lefort
> On product:
> The last version of the SSN Ontology published on the mailing list  
> (SensorBasis_withaccuracy.owl) extends the previously available  
> SensorBasis.owl with an example which illustrates how to specify the  
> MeasurementCapabilities of a sensor.
> This packaging of the OWL file will hamper the delivery of future  
> versions of the ontology. Can we deliver the SSN XG ontology and its  
> examples in separate files?
> Background and foreground information to support the discussion:
> Identification of the ontology sub-parts
> Tracking of previously published versions of the SSN ontology (and  
> identification of some of the associated configuration management  
> issues):
> http://www.w3.org/2005/Incubator/ssn/wiki/XG_ontologies_and_examples
> Status/work plan for the Ontology deliverables
> http://www.w3.org/2005/Incubator/ssn/wiki/Semantic_Sensor_Net_Ontology
Received on Tuesday, 8 June 2010 08:35:58 UTC

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