Re: Comment on the SOSA ontology

Dear all

I am some remark about the sosa example

https://github.com/w3c/sdw/blob/gh-pages/ssn/rdf/documentation_examples/sosa-core_examples.ttl


In the ssn ontology it was  clear what is a FeatureOfInterest (wind) and 
a Property of a FeatureOfInterest ( wind direction).
This distinction is no so easy to understand at the first reading. That 
why the design patern SSO is so important.
But I like very much this distinction. A temperature sensor may measure 
different think depending of its location (the soil, the outdoor air, 
the indoor air)

About the sosa example of room temperature
for me the FeatureOfInterest is a room (or buiding or indoor air), 
identified by one sample (a specific room 4830EH_UCSB)
and the property is the temperature (room temperature ).
In the example I think it is not so clear because I can not see where is 
defined  the property (temperature) .

the result of observation has no unit.
sosa-core:hasValue "23.8"^^xsd:double ;
there exist different unit about temperature celsius or degree.
Where can we find the unit of the temperature value?


Best regards
Catherine

-- 
Catherine ROUSSEY
Irstea Clermont Ferrand
Campus des Cézeaux
9 avenue Blaise Pascal
CS 200 85
63178 Aubière
tel: 33 (0)4 73 44 06 88
"Imprefection si beauty, madness is genious and it's better to be absolutely ridiculous than aboslutely boring" Maryline Monroe