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   RE: Didier's lab report

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  • From: Didier PH Martin <martind@netfolder.com>
  • To: Nikita Ogievetsky <nogievet@cogx.com>
  • Date: Wed, 13 Dec 2000 14:29:02 -0500

Hello Nikita,

Nikita said:
Sorry,  I just had to reply to this:
On the contrary, one of the greatest advantages of Topic Maps is that they
do allow conditional inclusions. They do it by means of "scope".

For example, you can say:
In the scope of WML aware client use this stylesheet,
in the scope IE5 use another stylesheet
and in the scope of NC and IE4  and IE3 use yet  third stylesheet.
I used this approach a couple of months ago and quite successfully!.
Same thing applies to the values of XSLT parameters.

It is clear and "tripleless" (forgive me, Uche) :-)))

Didier replies:
You are right Nikita, the scope potentially allows conditional inclusions.
Based on the scope we may add or suppress a link (i.e. a topic). Sorry
Nikita I forgot the scope attribute. But, in order to bring some light here,
let's precise the context where this is possible.

You probably said that in the context of having a topic map engine that
would consider the topics as inclusion constructs. In that case, yes, you
are right, the scope allows conditional inclusions. I was more thinking
about topic maps as linkbases without attributing an "include behavior" to
the links. However, I should say that it is possible to create a topic map
engine that consider the topics or the links as "include" constructs and
thus perform a conditional inclusion based on the scope. Seen through the
angle that a topic map engine may interpret topic maps as "include"
constructs, the answer is yes, obviously, using the scope allows to perform
conditional inclusion.

Didier PH Martin
Email: martind@netfolder.com
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