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Re: VSS collaboration (Data TF) meeting today?

From: <klotz@eurecom.fr>
Date: Mon, 18 Nov 2019 15:34:44 +0100
Message-ID: <20191118153444.5dplipn728s8wooc@webmail.eurecom.fr>
To: ted@w3.org
Cc: Ulf Bjorkengren <ulfbjorkengren@geotab.com>, public-automotive <public-automotive@w3.org>, "Winzell, Peter" <peter.winzell@volvocars.com>
Hi Ted and all,

> Benjamin gave his insight on the various graph database engines, that
> basically the various open source ones require considerable more custom
> programming to provide services on top of them. His and general opinion
> seem to favor Neo4j.

I had some thoughts about this and I see basically 2 directions for us:
- RDF/RDFS/OWL and W3C standards: that would require some effort in  
the design and maintenance of the DB and query interface.
- Existing DBMS platforms (most likely Neo4j), which come with their  
prorietarw query languages (cypher for instance) but would be deployed  
more quickly.

I saw an interest in demonstrating the benefit of the VSS model  
through GraphQL, and that is of course possible with both approaches:  
with HypergraphQL [1] (or equivalent) on linked data or a GRAND stack  
[2] including neo4j.

It mostly depends on the community using the interface. I have a  
personnal preference for the open standard way (RDF/OWL...) so I can  
use directly ontologies (like VSSo) without a need for adaptation  
(e.g. fro URIs to local IDs) and export JSON-LD data, but I understand  
that this is not mandatory for graphQL interface demonstrations.

[1] https://www.hypergraphql.org/
[2] https://grandstack.io/

Best regards,

> I met with several people from Neo4j by phone about getting an
> enterprise license donated, as it has additional features over the
> community edition. They were favorable and will likely meet one in
> person at Open Geospatial Consortium this week. They may also extend to
> us usage of their cloud service. I'll setup a community edition on the
> server we have at MIT for now.
> Since Patrick is sending regrets for Tuesday, perhaps we can take some
> of the WG call tomorrow to discuss next steps on VSS Graph project.
> https://www.w3.org/auto/wg/wiki/Vss_data
> On Thu, 2019-11-14 at 09:52 +0100, Ulf Bjorkengren wrote:
>> Will there be a meeting today at 16.00 CET to discuss the VSS
>> collaboration project?
>> BR
>> Ulf
>> --
>> Ulf Bjorkengren
>> Geotab
>> Senior Connectivity Strategist?|?Ph. D.
>> Mobile	+45 53562142
>> Visit	www.geotab.com
>> 	Join us at Connect 2020San DiegoJanuary 13 - 16, 2020
>> Register Now!
> --
> Ted Guild <ted@w3.org>
> W3C Automotive Lead
> https://www.w3.org/auto

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