Re: SSN requirements

Hi Frans,

wrt 5.3 Georeferenced sensor data
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#GeoreferencedSensorData>,
SSN does not specify which vocabulary to use, but it is possible to
georeference sensor data and there are many examples out there, e.g. using
GeoSPARQL.

Regarding the other requirements, 5.5 Mobile sensors
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#MobileSensors>,
5.7 Moving features
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#MovingFeatures>,
and 5.8 Observation aggregations
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#ObservationAggregations>,
SSN does not meet them (AFAIK). However, the final SSN report
<http://www.w3.org/2005/Incubator/ssn/XGR-ssn/> does not either explicitly
say that sensors and features (FOIs) have to be static, nor that
observations cannot be aggregated.

I would leave the analysis of which requirements are met by existing
standards/recommendations (and which of them are not) for the corresponding
SSN, Coverage, and Time deliverables. Let's see what the rest think...

Best regards,
Alejandro

On 28 April 2015 at 14:09, Frans Knibbe <frans.knibbe@geodan.nl> wrote:

> Hello Alejandro,
>
> About requirements 5.3
> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#GeoreferencedSensorData>,
> 5.5
> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#MobileSensors>,
> 5.7
> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#MovingFeatures>
> and 5.8
> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#ObservationAggregations>
> : Is it correct to assume that the current SSN vocabulary does not meet
> these requirements? Would it make sense to be explicit about that?
>
> Greetings,
> Frans
>
>
> --
> Frans Knibbe
> Geodan
> President Kennedylaan 1
> 1079 MB Amsterdam (NL)
>
> T +31 (0)20 - 5711 347
> E frans.knibbe@geodan.nl
> www.geodan.nl
> disclaimer <http://www.geodan.nl/disclaimer>
>
>


-- 
Alejandro Llaves

Ontology Engineering Group (OEG)

Artificial Intelligence Department

Universidad Politécnica de Madrid

Avda. Montepríncipe s/n

Boadilla del Monte, 28660 Madrid, Spain


http://www.oeg-upm.net/index.php/phd/325-allaves


allaves@fi.upm.es