Re: SDW plenary agenda item - Namespace for SOSA and SSN ontology

Dear Raphaël,

>From your mail I understand that there lacks a simple section that
describes the *three* main options we have.

Please find this  new section here:

https://www.w3.org/2015/spatial/wiki/NamespaceIssue#Three_options_in_a_nushell



> > I think that the two options are insufficiently described in order to
> > make an informed decision (sections 3.1 and 3.2). There is a lot of text
> >  explaining the mechanics of content negotiation which is sort of obvious
> >  for anyone who is familiar with the linked data concepts.


This was necessary for those that are less familiar with the linked  data
concepts, and wondered how two different ontologies and the terms they
respectively define could share the same namespace.


> > On the contrary, there is insufficient information on the bulk of the
> issue,
> > i.e. what (concepts and properties) is defined where, what is re-used,
> > what is being further defined with more axioms between SOSA and (new)
> SSN.
>

Is it clearer now with Armin's answer and the new section ?


> > In the current option 1, one can only see the definition of a
> > sosa:Platform in the sosa namespace, while this concept is further
> >  axiomatized in ssn.ttl using the concept of ssn:System. Does this mean
> > that there is no sosa:System?
>

Let CORE = "SOSA OR sosa:CoreVocabulary OR ssn:CoreVocabulary"
Let FULL = "SSN OR sosa:FullOntology OR ssn:FullOntology"

indeed:

- xxx:Platform is defined in CORE, and further axiomatized in FULL.
Looking up this URI redirects to CORE
- xxx:System is only defined  in FULL. Looking up this URI redirects to
FULL.

These are just taken as one example of concept for each of these ontologies.


>
> I wish that the wiki page was not distracted by all the mechanics of
> trivial content negotiation and linked data terms dereferencing, and
> instead, focus on what is defined where precisely and exhaustively.
>

The list of terms that will be defined in CORE and FULL is still under
discussion at this stage.

Kind regards,
Maxime


> Best regards.
>
>    Raphaël
>
> --
> Raphaël Troncy
> EURECOM, Campus SophiaTech
> Data Science Department
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> e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
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>
>