But aren't sort, type, and kind redundant, whereas class, category and
species have other more intentional meanings? And I don't get
universal. It doesn't make sense in "human speak," as someone called
it. (01)
Regards,
Antoinette (02)
Antoinette Arsic
Sr. Information Systems Engineer
The MITRE Corporation
703-337-9016 (VOIP)
*703-983-5286 (new office number, was 883)
*443-567-2703 (new cell) (03)
-----Original Message-----
From: ontac-dev-bounces@xxxxxxxxxxxxxx
[mailto:ontac-dev-bounces@xxxxxxxxxxxxxx] On Behalf Of Smith, Barry
Sent: Wednesday, January 18, 2006 12:58 PM
To: ONTAC Taxonomy-Ontology Development Discussion
Subject: RE: [ontac-dev] Type vs. Class et al. (04)
A dog is a sort of animal.
A dog is a type of animal.
A dog is a kind of animal.
A dog is a species of animal.
A dog is a category of animal.
A dog is a class of dog. (05)
Not (for what it's worth):
A dog is a concept of animal. (06)
And not even:
A dog is a universal of animal. (07)
However, we do have, by analogy with (08)
A dog is a subtype of animal. (09)
Also: (010)
A dog is a subuniversal of animal. (011)
BS (012)
At 06:55 PM 1/18/2006, you wrote:
>Where or when would you use sort? A dog is a sort of family member?
>
>
>Regards,
>Antoinette
>
>Antoinette Arsic
>Sr. Information Systems Engineer
>The MITRE Corporation
>703-337-9016 (VOIP)
>*703-983-5286 (new office number, was 883)
>*443-567-2703 (new cell)
>
>
>-----Original Message-----
>From: ontac-dev-bounces@xxxxxxxxxxxxxx
>[mailto:ontac-dev-bounces@xxxxxxxxxxxxxx] On Behalf Of Smith, Barry
>Sent: Wednesday, January 18, 2006 12:47 PM
>To: ONTAC Taxonomy-Ontology Development Discussion
>Subject: Re: [ontac-dev] Type vs. Class et al.
>
>At 05:25 PM 1/18/2006, you wrote:
> >COSMO-WG:
> > This is a first note using the ONTAC-dev listserver. I did not
> >receive any objections to moving our discussions to the ONTAC-dev
> >server, so all COSMO-WG members should find themselves on the list.
> >
> > Regarding the issue of what to call a 'Class' - Type? . . .
> >
> >First a clarification:
> >
> > >> The first [concept] is a disaster, though it is used e.g.
> >by ISO in its current terminology standards, and indeed by our Great
> >Leader.
> >
> >[PC] modestly accepting what I believe is a reference to my frequent
> >use of the term "concept", please understand that I fully sympathize
> >with Barry's emphasis on the need to distinguish between real things
>in
> >the world and the concepts people have of them and the terms by
which
> >we refer to them. But I am not aware yet of a usage that will serve
> >all of our purposes, and have noticed some problems caused by a lack
>of
> >standardization of these terms. So it's probably a good idea to try
>to
> >agree on a terminology.
> >
> >I need a term that means "a class or relation or function or
instance
> >or metaclass or function term or axiom or procedural rule or
attached
> >method or any other element that we would want to put into an
ontology
> >that represents some element of meaning, as distinct from the actual
> >things in the world to which they refer and as distinct from the
> >specific manner in which they happen to be represented." or "some
> >abstract entity which is represented by symbols in our ontologies,
is
> >intended to correspond in structure to some idea people have about
> >something or other, and refers to something other than itself".
>
>I think that with this vegetable garden you are just proving my point.
>
> >For that, I have been using the term "concept". Occasionally in
> >informal notes I may use "notion". In deference to Barry's dislike
of
> >'concept', I have occasionally used the phrase "Class or relation",
> >though that leaves out all those other things I want to refer to.
> >
> >I think this is close to what is usually intended by references to
> >Ogden's "meaning triangle":
> >
> >
> > Concept
> > / \
> > / \
> > / \
> > Symbol/Term --- Referent/Thing/Real-world Object
> >
> >Does anyone else have a candidate for a general term we should use
to
> >refer to any of the constituent elements of our ontologies?
>
>Term
>
> >----
> >When I mean a "Class" (Type, Category, Kind) I say "Class".
>
>This is not an element in the ontology. It is what an element in the
>ontology refers to (or it is the extension of what an element in the
>ontology refers to).
>
> >I use "Class" because it is used by the RDF and OWL communities
(which
> >are W3C standards), and I try to use the terms which are most widely
> >used.
>
>"Concept" is an ISO standard; but good sense will win through, in the
>end.
>
> > I believe this to be identical in meaning to "Collection" as
> >used in OpenCyc, "Class" in SUMO, "Universal" in DOLCE and
"Property"
> >in the Ontology Works system. I use it in the Ontolingua sense, as
an
> >intensionally defined grouping distinct from 'Set' which refers to
an
> >extensionally defined grouping. I am not intending to use it in the
> >set-theoretic sense.
> >
> >That term may have different usages in different communities (I
think
> >ISO15926 has a slightly different usage, though I do not yet fully
> >understand it).
> >
> >For our discussions, I will happily use any term on which we can
>agree.
> >
> >As for Barry's list:
> >
> >[BS] >> There is no perfect solution here. The
> >conceivably feasible alternatives (known to me) are:
> >
> >concept
> >universal
> >type
> >class
> >species
> >kind
> >category
> >
> >[PC] . . . you left out "Sort" and "Property" (the latter from
>Ontology
> >Works).
>
>I agree that 'sort' should be on the list. I do not think 'property'
>fits, however. We have
>
>Fido instance_of dog
>
>'Fido' refers to an instance
>
>Q1. What does 'dog' refer to?
>
>The color of this book instance_of red.
>
>'The color of this book' refers to an instance
>
>Q2. What does 'red' refer to?
>
> >a universal
> >a type
> >a class
> >a species
> >a kind
> >a category
> >a sort
>
>are all reasonable answers to both Q1 and Q2. 'Concept' is a good
>answer to none of them. 'Property' a good answer at best to Q2.
>
> >For our immediate purpose we only need to fix on the term we will
use
> >to refer to those intensionally defined groupings called:
> >
> > Class in Ontolingua and Protege
> > Class in RDF and OWL
> > Class in SUMO
> > Collection in OpenCyc
> > Universal in DOLCE
> > Property in Ontology Works' IODE system
> > ---------------
> >
> > The vote is still open.
>
>I vote for
>
>type
>universal
>kind
>sort
>
>in this order.
>BS
>
>
>
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