Re: [ontolog-forum] [SPAM] Re: An Ontology Modeling Different AgeGroups

["Schiffel, Jeffrey A" <jeffrey.a.schiffel@xxxxxxxxxx>]

UML has two composition associations. In the aggregation, the parts exist whether the whole exists or not. A football team still exists even after the game is over, when all the players have gone home. In the compostion, the parts vanish. This enables constructors and destructors in software code, for example.

 

This sort of discussion came up in the conceptual graphs list a while ago, during postings regarding the wholeness of a watch when a spring was replace (still same watch), and when a body of water was separated into two parts.

 

Regards,

 

-- Jeff Schiffel

 

 

---

From: Duane Nickull [mailto:dnickull@xxxxxxxxx]

Does “part” imply a UML 2.0 composite binary 
relationship? What the relationship between mother and offspring is is 
different.  Composite implies that the part is “part of” the whole and when 
the timeline for the whole ends, the timeline for the parts also ends.  As 
Cecil correctly noted, there are obvious exceptions to this.

The special 
dependency for this type of relationship is that the offspring is in a special 
“made from” relationship to two parents.  Once certain events are past, the 
dependency (or some of it) disappears to the point where most offspring outlive 
their parents.  For example, after the father’s sperm is contributed, there 
is no real need for the father other than support (obviously I am being very 
un-emotional here so no flames please).  As soon as the fetus is of a 
certain age, the dependency upon the mother is also somewhat reduced as medical 
professionals and society can help the child survive outside the womb. 
 Again, this is totally not considering the emotional requirements, only 
basic survival.  Obviously a child probably fares better with two living 
parents devoted to the child’s wellbeing.

Interesting discussion 
however.

Duane


On 3/25/09 4:34 PM, "Richard H. McCullough" 
<rhm@xxxxxxxxxxxxx> 
wrote:

> Cecil (and Chris)
>
> I would paraphrase your 
>   concerns differently:
> The standard definition of "part" is not 
>   appropriate.
> The parasite is a kind of  "foreign part", not a 
>   "natural
> part" of an organism.   A different term should be 
>   used
> in this context.
>
> So you could blame me for mis-using 
>   "part".
> Or you could blame a particular ontology.
> Don't blame 
>   epistemology.
>
> ditto for fetus.
>
> Dick
>
> > Well, I have run 
>   into this issue before (trying to use Dolce as a top
> > level for 
>   parasitic infections where they go through life forms)and I
> > would 
>   simply say that this view is exactly why epistemology has no place
> > in 
>    real world (at least health care) ontologies.
> >
> > 
>   Cecil
> >
> > Richard H. McCullough wrote:
> >> From the 
>   viewpoint of metaphysics/epistemology,
> >> a fetus is not a human 
>   being, it is a part of a human being
> >> (the mother). After birth, it 
>   is a human being (the newborn).
> >> 
> >>
> >> 
>       *From:* Azamat <mailto:abdoul@xxxxxxxxxxxxxx>
>
> >> 
>       development. That means abortion, in a sense, is a 
>   sort
> >>     of killing of a human being by a 
>   human being.
> >> 
>       
>
>
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