RE: [ExternalEmail] Re: ISSUE-2 (All processes are systems): All processes are systems [sensor ontology - http://mmisw.org/orr/#http://www.w3.org/2009/SSN-XG/Ontologies/SensorBasis.owl - 09.12.15 ]

Transducer is the general class that includes both sensors and actuators. 
 
However, actuators only generate mechanical effects. 
I don't think there is a general term for the inverse of sensor - i.e. a
device that converts a (electrical) signal into another kind of effect. 
 
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Simon Cox

European Commission, Joint Research Centre 
Institute for Environment and Sustainability 
Spatial Data Infrastructures Unit, TP 262 
Via E. Fermi, 2749, I-21027 Ispra (VA), Italy 
Tel: +39 0332 78 3652 
Fax: +39 0332 78 6325 
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  _____  

From: public-xg-ssn-request@w3.org [mailto:public-xg-ssn-request@w3.org] On
Behalf Of Michael Compton
Sent: Monday, 1 February 2010 05:09
To: fano.ramparany@orange-ftgroup.com
Cc: public-xg-ssn@w3.org
Subject: Re: [ExternalEmail] Re: ISSUE-2 (All processes are systems): All
processes are systems [sensor ontology -
http://mmisw.org/orr/#http://www.w3.org/2009/SSN-XG/Ontologies/SensorBasis.o
wl - 09.12.15 ]


Hi Fano,

Thanks for the comments - sorry for not addressing this sooner (holidays).

It seems that actuators could be added to the ontology, though are they sub
concepts of sensor?  I don't really know anything about their modelling, but
I would have expected perhaps actuation to be a process and actingdevice to
be a device, but I don't understand why they should be sub concepts of the
sensing concepts.  Maybe an actingdevice is a device that might have sensors
attached to it, and so sometimes it is both a sensing device and an
actingdevice, but aren't there also things that are just actuators, where
the sensing and decision making are made elsewhere and the device only does
some movement or turns something on?

In any case, the two concepts should be related closely enough that a system
(or device) could be described that contains both.

Please explain further how we can describe actuators (and how this fits in
with the other working group you are involved in) in the ontology.

Michael





On 19/01/2010, at 20:25 , fano.ramparany@orange-ftgroup.com wrote:


I agree with the ontology. I would suggest the addition of the concepts
(classes) actuator (as sibling of sensor), actingdevice (as sibling of
sensingdevice) and configuration parameter (as sibling of input and output,
or as a subclass of input)

Fano 

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