On Jun 1, 2009, at 7:51 AM, Gunther Schadow wrote: (01)
> Mike Bennett wrote:
>> Hi Peter,
>>
>> I would love to participate in this session.
>>
>> In particular I want to ensure that the concept of units is broad
>> enough
>> to cover uses outside of the physical measurement domain. For example
>> currencies are also a unit of measure.
>
> Actually, I think currencies are not unit of measure because
> they lack one important property, and that it they do not have
> a fixed magnitude relative to other units of the same kind
> of quantity. (02)
There may be an analogy with 'sea level' which is not a level, since
it varies by both location and time, and has no precise value even at
a given time and place. Yet it is of great value in all kinds of
applications. As a result, 'standard' virtual sea levels have been
defined, based on various models of a more perfect Earth. (I believe
there are at least three: the US, the European,and the Australasian,
which all differ subtly.) We may be obliged to do something similar
for monetary value, ie define an artificial 'absolute economic value'
and punt on the task of relating actual values to it, leaving that
necessary but ugly task to the appropriate engineers. (03)
Pat (04)
>
> Commensurability and magnitude are critical properties to take
> care of.
>
> regards,
> -Gunther
>
>
>
> --
> Gunther Schadow, M.D., Ph.D. gschadow@xxxxxxxxxxxxxxx
> Associate Professor Indiana University School of Informatics
> Regenstrief Institute, Inc. Indiana University School of Medicine
> tel:1(317)423-5521 http://aurora.regenstrief.org
>
> CONFIDENTIALITY NOTICE: The contents of this message and any files
> transmitted with it may contain confidential and/or privileged
> information and are intended solely for the use of the named
> addressee(s). Additionally, the information contained herein may have
> been disclosed to you from medical records with confidentiality
> protected by federal and state laws. Federal regulations and State
> laws prohibit you from making further disclosure of such information
> without the specific written consent of the person to whom the
> information pertains or as otherwise permitted by such regulations. A
> general authorization for the release of medical or other information
> is not sufficient for this purpose. If you have received this message
> in error, please notify the sender by return e-mail and delete the
> original message. Any retention, disclosure, copying, distribution or
> use of this information by anyone other than the intended recipient is
> strictly prohibited.
>
> _________________________________________________________________
> Msg Archives: http://ontolog.cim3.net/forum/ontology-summit/
> Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontology-summit/
> Unsubscribe: mailto:ontology-summit-leave@xxxxxxxxxxxxxxxx
> Community Files: http://ontolog.cim3.net/file/work/OntologySummit2009/
> Community Wiki: http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2009
> Community Portal: http://ontolog.cim3.net/
>
> (05)
------------------------------------------------------------
IHMC (850)434 8903 or (650)494 3973
40 South Alcaniz St. (850)202 4416 office
Pensacola (850)202 4440 fax
FL 32502 (850)291 0667 mobile
phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes (06)
_________________________________________________________________
Msg Archives: http://ontolog.cim3.net/forum/ontology-summit/
Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontology-summit/
Unsubscribe: mailto:ontology-summit-leave@xxxxxxxxxxxxxxxx
Community Files: http://ontolog.cim3.net/file/work/OntologySummit2009/
Community Wiki: http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2009
Community Portal: http://ontolog.cim3.net/ (07)
|