[sc34wg3] Editors' drafts of TMDM and XTM 1.1

Fri, 16 Dec 2005 18:10:25 +0100

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Murray Altheim wrote:

> I would hope that the ISO editors reconsider calling their
> markup language something other than "XTM", as by all counts
> (including your own remarks above) it no longer continues in
> any tradition (grammatically or semantically) with what XTM
> 1.0. It has redefined existing grammatical tokens, made funda-
> mental alterations to their meaning and behaviour, and added
> or subtracted enough of the language that any resemblance to
> XTM 1.0 is only peripheral, and perhaps misleading. You have
> invented a new XML markup language for interchanging Topic
> Maps of a different model, and this requires a new name.

This is true. On the other hand creating new language named like YAXTM=20
(Yet Another XML Topic Maps) will be confusing to users and would not be =

good for "TM marketing" IMHO. People will ask question like -- "What is=20
better: XTM or YAXTM?", "Should I use XTM or YAXTM?". I think that at=20
the end it will create more problems and confusion than using the=20
original XTM name.

My suggestion is to label it "XTM 2.0" instead of "XTM 1.1" (as Lars=20
already proposed). It will not be the first time when change in major=20
number of some language means big and backward incompatible changes. But =

it will be perfectly clear that "XTM 2.0" is a successor of "XTM 1.0".=20
It is still XML representation of topic map.

> Existing XTM applications can't "upgrade" to this new markup
> language by simply making minor alterations to existing
> software since the application behaviour in many cases has
> also changed.

If you change namespace, it usually means that semantic changed in a=20
backward incompatibile way and processing tools must be revised anyway.

--=20
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