[Fiware-ngsi] Semantic Extension of the the PubSub GE semantic

[Fermín Galán Márquez]

Dear Boris, Fano, Laurent,

I think this discussion is interesting (and, we have a change I will
read the emails on deep and try to provide feedback). However, in order
to keep email threads clean, I have renamed its subject, so we can leave
the "JSON" subject for emails actually related with the discussion on
NGSI JSON (if any).

Thanks in advance!

Best regards,

------
Fermín

El 05/02/2013 11:42, Moltchanov Boris escribió:
> Dear Fano,
>
> I'm here just to give few clarifications about the semantic meaning in the TI's implementation of the Pub/Sub GE.
>
> a. currently the broker does not support the application domain meta-data neither in its data structure nor in the requests;
>
> b. once the NGSI-9 (context providers operations and in particular registry) will be implemented we're going to enable to NGSI providers to claim to the broker what the applications domain context they are running; therefore for those providers the broker will know what is the application domain at the registration phase. And any requests coming from a consumer (the SPARQL converter as well) will be treated regardless of the application domain within the request but the application domain of the provider, which will return requested context data (NGSI "scope" value) with its own assigned application domain;
>
> c. no specific dynamic application domains will be supported by the ContextML/CQL therefore we're prone to assign any by default in our wrapper (on in SPARQL converter) or assign it by the broker instance's configuration.
>
> If you need any clarifications or further details please let me know.
>
> Best Regards,
> Boris
>
> -----Original Message-----
> From: fiware-ngsi-bounces at lists.fi-ware.eu [mailto:fiware-ngsi-bounces at lists.fi-ware.eu] On Behalf Of fano.ramparany at orange.com
> Sent: Monday, February 04, 2013 7:44 PM
> To: Fermín Galán Márquez; fiware-ngsi at lists.fi-ware.eu
> Subject: Re: [Fiware-ngsi] JSON
>
> Hi,
>
> In the context of the development of the semantic extension of the the PubSub GE semantic, we are developing a NGSI/XML to RDF/XML translator. To start with we are focusing on the NGSI/XML queryContextResponse...xml messages related to geolocation. We plan to use the "attributeDomainName" element as an hint to identify a geolocation context information.
>
> We have a first question about this: is there a reason for introducing 2 different values of this element related to geolocation? Namely: parcelGeo, geolocation? Why don't we simply use geolocation?
>
> More generally, could we assume that the value of the "attributeDomainName" could be used as a way to anticipate what the "contextAttribute" names (in the "contextAttributeList") will be?
>
> If it is the case, we can use this element to identify which ontology the target rdf will comply to and to use the corresponding "contextAttribute"s names as properties of the ontology or to find in an existing ontology the mapping between the properties of this ontology and the "contextAttribute" names.
>
> Apart from geolocation, in the examples we have found messages tagged with "parcelStep" "attribute DomainName". We assume that we should elaborate the corresponding RDF in compliance with some supply chain ontology.
>
> It would be interesting to do this translation exercise, with more NGSI/XML examples coming from UC projects which are using the PubSub GE, although the policy we currently foresee is that each UC project define its domain ontologies and we supply the project with a method to automate the transformation of the NGSI/XML content into RDF complying to this domain ontology.
>
> Any feedback on this is more than welcome,
>
> Thanks,
>
> Fano
>
> -----Message d'origine-----
> De : fiware-ngsi-bounces at lists.fi-ware.eu [mailto:fiware-ngsi-bounces at lists.fi-ware.eu] De la part de Fermín Galán Márquez Envoyé : mercredi 30 janvier 2013 15:32 À : fiware-ngsi at lists.fi-ware.eu Objet : [Fiware-ngsi] JSON
>
> Hi,
>
> We have a bunch of XML examples for our NGSI binding at https://forge.fi-ware.eu/scmrepos/svn/iot/trunk/schemes/xml_examples/
> but, what about JSON? Is there any similar bunch of example available in some place, please?
>
> Thanks!
>
> Best regards,
>
> ------
> Fermín
>
>


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