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

From: Raphaël Troncy <raphael.troncy@eurecom.fr>
Date: Wed, 22 Feb 2017 00:24:04 +0100
To: Armin Haller <armin.haller@anu.edu.au>, "public-sdw-wg@w3.org" <public-sdw-wg@w3.org>
Message-ID: <f236c3d8-d8a0-b756-7750-20ba7fa447b0@eurecom.fr>
Dear Armin, all,

> If you have an opinion on this, please do have a close look at the two
> options on our Wiki page that outline the implementation implications of
> each option: https://www.w3.org/2015/spatial/wiki/NamespaceIssue

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. 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.

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?

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.
Best regards.


Raphaël Troncy
EURECOM, Campus SophiaTech
Data Science Department
450 route des Chappes, 06410 Biot, France.
e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
Tel: +33 (0)4 - 9300 8242
Fax: +33 (0)4 - 9000 8200
Web: http://www.eurecom.fr/~troncy/
Received on Tuesday, 21 February 2017 23:24:42 UTC

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