RE: Access to DUL.owl ontology

Sure – that refers to the old ssn  of 2012 or so – kindly  just point them to the ssn we have published in our WD.


From: Krzysztof Janowicz [mailto:janowicz@ucsb.edu]
Sent: Wednesday, 25 January 2017 8:51 AM
To: SDW WG Public List <public-sdw-wg@w3.org>; Taylor, Kerry (ICT Centre, Acton) <Kerry.Taylor@csiro.au>; Phil Archer <phila@w3.org>; Cox, Simon (CESRE, Kensington) <Simon.Cox@csiro.au>
Subject: Fwd: Access to DUL.owl ontology


See the email below from an SSN user as one example.


-------- Forwarded Message --------
Subject:

Access to DUL.owl ontology

Resent-Date:

Wed, 17 Aug 2016 17:23:55 +0000

Resent-From:

public-xg-ssn@w3.org<mailto:public-xg-ssn@w3.org>

Date:

Thu, 18 Aug 2016 01:22:43 +0800

From:

Sergio José Rodríguez Méndez <srodriguez@pet.cs.nctu.edu.tw><mailto:srodriguez@pet.cs.nctu.edu.tw>

To:

public-xg-ssn@w3.org<mailto:public-xg-ssn@w3.org>, semantic-web@w3.org<mailto:semantic-web@w3.org>


Hello.

Currently, I'm working on an ontology definition aligned to Semantic Sensor Network Ontology (SSN)<http://purl.oclc.org/NET/ssnx/ssn>, which, in turn, is aligned to the Dolce Ultra-Lite upper ontology<https://www.w3.org/2005/Incubator/ssn/wiki/SSN_Skeleton#Aligning_the_SSN_Ontology_and_the_core_SSO_design_pattern_with_DOLCE>.

One can see<https://www.w3.org/2005/Incubator/ssn/ssnx/ssn#Module_DUL> that in the SSN ontology spec, the DUL IRI namespace is:
http://www.loa-cnr.it/ontologies/DUL.owl


However, it seems that this "link is broken", due that the IRI doesn't point the the proper DUL.owl definition.

I'm trying to see/generate a data model visualization of SSN via the tool WebVOWL (Web-based Visualization of Ontologies)<http://vowl.visualdataweb.org/webvowl.html>.

For this, I'm following this IRI:
http://vowl.visualdataweb.org/webvowl/#iri=http://purl.oclc.org/NET/ssnx/ssn


However, it fails due that it cannot find/retrieve DUL's definition:
{
Could not load imported ontology: &lt;http://www.loa-cnr.it/ontologies/DUL.owl&gt; Cause: Problem parsing http://www.loa-cnr.it/ontologies/DUL.owl

Could not parse ontology.
}

Questions:

  *   Is there any standard way to handle this "broken link" when aligning to upper ontologies?
  *   Should DUL.owl be fixed?
  *   Should SSN address this situation "somehow"?
  *   If I'm aligning to SSN, how I should address this situation?
Thank you for your feedback.

/$¡rm
Best regards,

Sergio José Rodríguez Méndez (羅士豪)
Pervasive Embedded Technologies Laboratory (PET Lab)
Computer Science Department
National Chiao Tung University