Re: SSN Thread for github issue 378 - Side effects of ssn:Observation being a kind of dul:Event instead of dul:Situation

> If each github issue shall have its own thread on the SDW list, this 
> is the one for issue 378 - https://github.com/w3c/sdw/issues/378 :

Just for the record. What we agreed on some weeks ago (for SSN) was to 
have all major discussions and decisions on the SDW list but allow for 
issue tracking, comments, and implementation details to remain on github.

Best,
Krzysztof



On 09/28/2016 01:53 AM, Maxime Lefrançois wrote:
> Dear all,
>
> If each github issue shall have its own thread on the SDW list, this 
> is the one for issue 378 - https://github.com/w3c/sdw/issues/378 :
>
>
> if|ssn:Observation| <http://www.w3.org/ns/ssn/Observation>is a kind 
> of|dul:Event| 
> <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Event>instead 
> of a|dul:Situation|
>
> there is an immediate side effect to resolve:
>
> /axiom:/
>
> |ssn:Observation rdfs:subClassOf [ owl:onProperty dul:includesEvent ; 
> owl:someValuesFrom ssn:Stimulus ] . |
>
> /context axioms:/
>
> |ssn:Stimulus rdfs:subClassOf dul:Event . dul:includesEvent rdfs:domain 
> dul:Situation ; rdfs:range dul:Event . |
>
> /solution to solve the side effect:/
>
> replace the mention of|dul:includesEvent|in axiom by a property that 
> has for domain and range|dul:Event|
>
> the only such DUL properties are:|dul:isPreconditionOf|, 
> and|dul:isPostconditionOf|.
>
> Neither of them seem to fit,
> so, should this axiom be simply deleted from the SSN-DUL alignment ?
>
>
> Kind regards
>
> Maxime Lefrançois
>


-- 
Krzysztof Janowicz

Geography Department, University of California, Santa Barbara
4830 Ellison Hall, Santa Barbara, CA 93106-4060

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