Re: SOSA core - procedures vs devices

Probably going to rehash an old debate here, but given there is an active
conversation trying to make the model more easily understood to outsiders
I'll dive in to check my comprehension...

This description ( sensor->procedure->activity) is helpful to me at least
to quickly understand the basic concerns. It introduces a requirement on
the modularity IMHO: because procedures are not unique to sensing, its is
necessary to allow procedures to be independent of sensors - because there
are numerical models that generate similar looking results to sensing.

Sensing appears to be bound up in the spatio-temporal frame of reference of
the observer, whereas the spatio-temporal frame of reference of the
phenomena is common to sensing, models, statistical operations (are these
just models).  I would expect the model module structure to reflect this:
its a way of attaching such sensing related metadata to a general
observation process. Is a deployed sensor just a sampling feature (being a
sensor within a specific spatio-temporal context but also within a context
where what it observes indirectly  to a property of the feature of
interest?)

cheers
Rob


On Wed, 13 Jul 2016 at 09:50 <Simon.Cox@csiro.au> wrote:

> Yes, but I think we were thinking more that a procedure uses a device,
> during an activity.
>
>
>
> When describing the agents of observation, it depends how close you want
> to look. There are multiple layers of encapsulation. That was probably the
> motivation for bundling them together in SensorML and O&M, but SSN chose to
> be more careful about distinguishing physical devices from workflows –
> which I certainly understand as well.
>
>
>
> The word ‘process’ is overloaded, and in particular is used in
> contradictory ways in BFO and O&M, and SensorML uses it in both ways. So
> now I prefer to avoid it altogether.
>
>
>
> *From:* Joshua Lieberman [mailto:jlieberman@tumblingwalls.com]
> *Sent:* Wednesday, 13 July 2016 9:10 AM
> *To:* Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au>
> *Cc:* danh.lephuoc@tu-berlin.de; janowicz@ucsb.edu;
> armin.haller@anu.edu.au; public-sdw-wg@w3.org; kerry.taylor@anu.edu.au
> *Subject:* Re: SOSA core - procedures vs devices
>
>
>
> Sorry I missed the call today. So a device “runs” (l:n) a procedure in /
> during (1:n) a process?
>
>
>
> —Josh
>
>
>
> On Jul 12, 2016, at 6:39 PM, simon.cox@csiro.au wrote:
>
>
>
> I’ve put some notes and a diagram explaining my understanding of the consensus from today’s call here https://www.w3.org/2015/spatial/wiki/SOSA_Ontology#Procedures_vs_Devices
>
>
>
> Note
>
> 1.      I have adjusted the names of the classes to avoid ambiguity between the re-usable things and the events when they are used
>
> 2.      I have not yet implemented this in SOSA-Core – its just a proposal for now.
>
> Simon
>
>
>