Re: Sensor description

Hi Markus and thanks for your prompt answer,

ok that is clear enough to continue with my class building. What also comes
to my mind, is the axioms per class.
I have described my classes with axioms, but we are not going to use any
reasoning yet, so I am not sure how useful my axioms are. Should I be
describing the classes with axioms or not?
Every System[1] subclass e.g. SystemXXXX, will share common characteristics
with its instances (different serial numbers) like
MeasurementCapability[2], Operating Range[3] etc. My idea of modelling
this, is to create a MeasurementCapability instance for System XXX and then
connect it with the different serial number instances of Class SystemXXX,
so that they share the same e.g. Measurement Capabilities. Does this sound
sensible?

Thanks again

Alexandra


[1]http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#System
[2]*http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#MeasurementCapability
<http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#MeasurementCapability>*
[3]
*http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#OperatingRange
<http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#OperatingRange>*


On Fri, Sep 11, 2015 at 7:59 AM, Markus Stocker <markus.stocker@gmail.com>
wrote:

> Hi Alexandra,
>
> On Fri, Sep 11, 2015 at 12:35 AM Alexandra Kokkinaki <
> alexandra.kokkinaki@gmail.com> wrote:
>
>> Hi,
>>
>> could you please help on that? I want to describe sensing devices
>> consisting of sensors in RDF with the help of ssn ontology.
>>
>
> Sounds like you have a System [1] with sensors (possibly sensing devices)
> as sub systems [2].
>
>
>> Each sensing device will have many serial numbers and each sensor will
>> also have several serial numbers.
>>
>
> Note that a sensor is "any entity that can follow a sensing method" [3]
> and can include a lab technician who follows a protocol to measure a
> property while a sensing device is an instrument. A sensing device is a
> sensor, while a sensor may be a physical object other than a device.
>
> I think I would model serial numbers for systems, which will also work for
> sensing devices.
>
>
>> So I was thinking of creating a class for each type of sensing device
>> under SensingDevice class  and a class for each type of sensor under Sensor
>> class.
>> Then publish this ontology with the new classes.
>> Then create a new file only for the instances, which will import the new
>> ontology.
>>
>
> Looks like a sensible approach, especially if you want the first ontology
> with your classes to be reusable.
>
> Cheers,
> Markus
>
> [1] http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#System
> [2] http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#hasSubSystem
> [3] http://www.w3.org/2005/Incubator/ssn/ssnx/ssn#Sensor
>
>
>> Is this the correct way to go?
>>
>> Thanks,
>>
>> Alexandra
>>
>