[topicmapmail] Re: k42 and superclass-subclass and class-instance relationships

[Knud Möller]

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Hi Magdalena!

> Let's say that I want to model such an association: each enzyme has a =20=

> number called EC number i.e.=A0EC number of an alcohol dehydrogenaze =
is =20
> 1.1.1.1.=A0 I have created topic "number", topic "EC" and "1.1.1.1". I =
=20
> thing they should be connected by superclass-subclass relationship =20
> which is=A0tranzitive - it means that I can claim that "1.1.1.1" is an =
=20
> instance of "number". I have created also a topic "alcohol =20
> dehydrogenaze".

Couldn't you use an internal resource for the EC number instead of an =20=

association? I mean something like this:

<topic id=3D"alcohol_dehydrogenaze">
	...
	<occurrence>
		<instanceOf>
			<topicRef xlink:href=3D"#otECNumber">
		</instanceOf>
		<resourceData>1.1.1.1</resourceData>
	</occurrence>
</topic>

<topic id=3D"otECNumber>
	... the topic reifying the concept of EC number ...
</topic>

As far as I understood this is a good method for representing the kind =20=

of information you need. The "Regarding Factes"-Thread from the last =20
weeks started with a similar problem, which basically boils down to =20
attaching metadata. E.g., look here:
- http://www.infoloom.com/pipermail/topicmapmail/2003q1/004524.html


Cheers,

Knud

------------------------------------------------------------------------=20=

-----
Knud M=F6ller -  Institut f=FCr Sprachliche Informationsverarbeitung,
Universit=E4t zu K=F6ln
(Department of Linguistic Data Processing,
University of Cologne, Germany)=

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Hi Magdalena!


<excerpt><smaller>Let's say that I want to model such an association:
each enzyme has a number called EC number i.e.=A0EC number of an alcohol
dehydrogenaze is 1.1.1.1.=A0 I have created topic "number", topic "EC"
and "1.1.1.1". I thing they should be connected by superclass-subclass
relationship which is=A0tranzitive - it means that I can claim that
"1.1.1.1" is an instance of "number". I have created also a topic
"alcohol dehydrogenaze". </smaller>

</excerpt>

Couldn't you use an internal resource for the EC number instead of an
association? I mean something like this:


<<topic id=3D"alcohol_dehydrogenaze">

	...

	<<occurrence>

		<<instanceOf>

			<<topicRef xlink:href=3D"#otECNumber">

		<</instanceOf>

		<<resourceData>1.1.1.1<</resourceData>

	<</occurrence>

<</topic>


<<topic id=3D"otECNumber>

	... the topic reifying the concept of EC number ...

<</topic>


As far as I understood this is a good method for representing the kind
of information you need. The "Regarding Factes"-Thread from the last
weeks started with a similar problem, which basically boils down to
attaching metadata. E.g., look here:

- http://www.infoloom.com/pipermail/topicmapmail/2003q1/004524.html



Cheers,


Knud=20


=
--------------------------------------------------------------------------=
---

Knud M=F6ller -  Institut f=FCr Sprachliche Informationsverarbeitung,

Universit=E4t zu K=F6ln

(Department of Linguistic Data Processing,

University of Cologne, Germany)=

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