On Sep 29, 2009, at 4:27 PM, Gunther Schadow wrote: (01)
> An object may have the property "maximum allowable temperature"
>
> That object would also have the property "actual temperature" at
> any point in time.
>
> The object might never have the property "actual temperature" whose
> quantity value is equal to its property "maximum allowable
> temperature".
>
> Either way, maximum allowable temperature and actual temperature
> are both special kinds of temperatures. (02)
Exactly. (03)
Pat (04)
>
> regards,
> -Gunther
>
> Chris Partridge wrote:
>> Gunther,
>>
>> Maximum allowable temperature is a disposition of the object.
>> The object may reach never reach that temperature, or may reach it,
>> even
>> exceed it, but that does not have much, in itself, to do with the
>> property.
>>
>> The property is something like: other things being equal, if you
>> stay below
>> this temperature the object (more often, a type of object) will
>> operate as
>> specified - if you go above it then it may not.
>>
>> (Allowable is probably not the best example, as one could try and
>> cash this
>> out by saying that one is defining two states that the object can
>> be in -
>> below (or equal) to the maximum and above the maximum. But that
>> would ignore
>> the intention that staying within the 'allowable' range should
>> provide some
>> guarantee of normal operation.)
>>
>> So, the object has (or does not have) this property whatever its
>> actual
>> temperature.
>>
>> I suppose one could argue that these are not quantities at all -
>> but then (I
>> am told) most useful engineering measures would be excluded.
>>
>> Regards,
>> Chris Partridge
>> Chief Ontologist
>
>
>
> --
> 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
>
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> (05)
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