W3C home > Mailing lists > Public > public-xg-prov@w3.org > May 2011

Re: concept illustrations for the data journalism example

From: Paul Groth <pgroth@gmail.com>
Date: Thu, 12 May 2011 13:48:33 +0200
Message-ID: <4DCBC911.3010408@gmail.com>
To: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
CC: public-xg-prov@w3.org
Hi Luc,

I think the notion of saying "something happened at a particular time" 
is pretty common sensical. By including that in the scenario, I think we 
have an entry point to discussing exactly those issues that you bring up.

No?

cheers,
Paul

Luc Moreau wrote:
> Olaf and Paul,
>
> On 05/12/2011 12:30 PM, Olaf Hartig wrote:
>> Hey Paul,
>>
>> On Thursday 12 May 2011 10:16:14 Paul Groth wrote:
>>> >  Hi Olaf:
>>> > >  Interesting exercise. Thanks.
>>> >
>>>> > >  1.) The example does not talk about specific points in time at 
>>>> which the
>>>> > >  different processing steps happened (Hence, I omitted 
>>>> corresponding
>>>> > >  statements in my description). Shouldn't the example extended 
>>>> with such
>>>> > >  kind of information? For instance, the first processing step 
>>>> could read:
>>>> > >  "government (gov) converts data (d1) to RDF (f1) at time (t1)"
>>> > >  I think time is implicit in the example. I don't know if we 
>>> need to make
>>> >  it explicit. It seems it would be tailoring the example to a
>>> >  representation language...
>> I don't see that.
>>
>> If (some of) the processing steps were mentioning such a time, I 
>> would have
>> added corresponding  prv:performedAt  triples to my example 
>> description. Since
>> there were no such times, I omitted these triples because I wanted the
>> description to be as close to the textual description as possible. 
>> What I want
>> to say is, without such times we cannot see whether a 
>> model/vocabulary would
>> support representing them.
>>
> Time is important no doubt, and not made explicit in the scenario.
> What does it mean to be performedAt? Time at which process execution
> took place? Is it instaneous? has it a duration? Is it the time at 
> which the DataItem
> is produced?
>
> Can we express these questions and answer them independently of a 
> terminology?
>
> Luc
>
Received on Thursday, 12 May 2011 11:50:21 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 12 May 2011 11:50:21 GMT