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Re: PROV-ISSUE-19: is this observable or not observable?

From: Carl Reed <creed@opengeospatial.org>
Date: Tue, 7 Jun 2011 08:51:57 -0600
Message-ID: <CAE6F95EC99E415CBCD8BBBEB510FFC8@CarlandSusieOf>
To: <pgroth@gmail.com>, "Luc Moreau" <L.Moreau@ecs.soton.ac.uk>
Cc: <public-prov-wg@w3.org>
For what its worth, the following definitions are from several ISO documents 
for Observations and Measurements - which relate directly to the semantics 
of observable properties, such as for sensors.

observation

act of observing a property

NOTE          The goal of an observation may be to measure or otherwise 
determine the value of a property

property

facet or attribute of an object referenced by a name

[ISO 19143:2010, definition 4.21]

EXAMPLE                              Abby's car has the colour red, where 
"colour red" is a property of the car instance

And the one I enjoy: Observable - ability to be observed, possible to 
observe, and so forth. The use of "observable" in physics and quantum 
mechanics is very specific but essentially a sub-class of the general 
definition.

Anyway, observables are properties such as "temperature", "height", 
"colour", "material".

Cheers

Carl

----- Original Message ----- 
From: "Paul Groth" <pgroth@gmail.com>
To: "Luc Moreau" <L.Moreau@ecs.soton.ac.uk>
Cc: <public-prov-wg@w3.org>
Sent: Tuesday, June 07, 2011 1:11 AM
Subject: Re: PROV-ISSUE-19: is this observable or not observable?


> Hi All,
>
> Can someone attempt to provide a clean notion of what observable and
> non-observable mean in this context.
>
> Thanks,
> Paul
>
> On Tue, Jun 7, 2011 at 9:00 AM, Luc Moreau <L.Moreau@ecs.soton.ac.uk> 
> wrote:
>>
>> Dear all,
>>
>> When we discussed the notion of 'Invariant View or Perspective on a 
>> Thing,
>> there were
>> suggestions that it should be observable, and counter-suggestions that it
>> should not be.
>>
>> It would be good to discuss both sides of the argument, in an attempt to
>> reach consensus.
>>
>> Best regards,
>> Luc
>>
>>
>>
>>
>
> 
Received on Tuesday, 7 June 2011 14:55:41 GMT

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