Normal Operating Temperature

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vvagr
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Re: Normal Operating Temperature

#11 Post by vvagr »

Ambient Temperature is a ClassOfIndirectProperty
This is completely different approach, where you define it as a class of relationship, not a (class of) class of individual. Please remember the starting point of this discussion, where Onno asked about Amb. as a value for Normal Operating Temperature, which is a ClassOfIndirectProperty itself. To answer his question we have to remain in ClassOfClassOfIndividual-ClassOfIndividual-Individual domain.

It will be again quite cumbersome to use here completely different modelling pattern!
Is there any situation where you can assume a discontinuity in the range of the ambient temperature? For example that it changes in zero seconds from 16 to 19 degrees Celsius?
I'll try to explain even without continuity. If AMBIENT TEMPERATURE is a SinglePropertyDimension - it becomes the same class as TEMPERATURE - by the "same membership" criteria. Indeed, if there is somewhere in the real (or possible) world a real (or imaginable) Temperature Property, then we can imagine the situation where some "surroundings" have the same Property. The membership is the same.

If AMBIENT TEMPERATURE is a ClassOfPropertySpace - then its members are all possible temperature intervals in the world.

KeithWillshaw
Posts: 77
Joined: Tue May 15, 2012 8:48 am

Re: Normal Operating Temperature

#12 Post by KeithWillshaw »

vvagr wrote:
Ambient Temperature is a ClassOfIndirectProperty
This is completely different approach, where you define it as a class of relationship, not a (class of) class of individual. Please remember the starting point of this discussion, where Onno asked about Amb. as a value for Normal Operating Temperature, which is a ClassOfIndirectProperty itself. To answer his question we have to remain in ClassOfClassOfIndividual-ClassOfIndividual-Individual domain.

It will be again quite cumbersome to use here completely different modelling pattern!
Is there any situation where you can assume a discontinuity in the range of the ambient temperature? For example that it changes in zero seconds from 16 to 19 degrees Celsius?
I'll try to explain even without continuity. If AMBIENT TEMPERATURE is a SinglePropertyDimension - it becomes the same class as TEMPERATURE - by the "same membership" criteria. Indeed, if there is somewhere in the real (or possible) world a real (or imaginable) Temperature Property, then we can imagine the situation where some "surroundings" have the same Property. The membership is the same.

If AMBIENT TEMPERATURE is a ClassOfPropertySpace - then its members are all possible temperature intervals in the world.
The original issue raised by Onno is one that is often seen in the real world. If you are trying
to describe the temperature in a part of the plant that is neither heated nor cooled the traditional
way is just to describe it as ambient.

This is actually not a single value it will usually be a range along the lines of -10 C to +30C and is traditionally a property
of the site rather than any piece of equipment or other business object.

I note that there is an entry in the JORD endpoint that seems to match this which is

http://posccaesar.org/rdl/RDS1186694
AMBIENT TEMPERATURE ENVIRONMENT
Equivalent RDS-WIP class ID
R68736101304
Types
ClassOfArrangedIndividual

Subclasses
MINUS 5 TO 40 DEGREE CELSIUS AMBIENT TEMP. ENVIRONMENT
YEARLY AVERAGE TEMPERATURE ENVIRONMENT
UP TO 45 DEGREE CELSIUS AMBIENT TEMP. ENVIRONMENT
MINUS 7 TO 23,5 DEGREE CELSIUS AMBIENT TEMP. ENVIRONMENT
MINUS 20 TO 40 DEGREE CELSIUS AMBIENT TEMP. ENVIRONMENT

Keith

vvagr
Posts: 282
Joined: Mon Feb 27, 2012 11:01 pm
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Re: Normal Operating Temperature

#13 Post by vvagr »

Keith,

As I've tried to explain, ontologically AMBIENT TEMPERATURE as defined by http://posccaesar.org/rdl/RDS1186694 is the same class as TEMPERATURE. Both have exactly the same membership. From the practical point of view it is probable OK, like many other ontologically wrong things at JORD endpoint.

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