[sc34wg3] Simple Topic Maps (STM): An example of deserialization

[Jan Algermissen]

Lars Marius Garshol wrote:
> 
> * Michel Biezunski
> |
> | We have published this document in its incomplete state to allow the
> | members of the WG3 working group to see a working example of how the
> | TMM brings extensibility and modularity to Topic Maps.
> 
> Thank you very much for doing that. This does help to clarify what has
> been meant by these terms on this mailing list over the past months.
> 
> | It is designed to show how differences between the needs of various
> | users of the Topic Map standard can lead to both obvious and
> | non-obvious differences with the SAM, as currently proposed in
> | N0396.
> 
> As such it is anything but persuasive, since it is obvious that STM
> can easily be represented using the SAM. Taken together this document
> and that recently posted by Jan each specify different TMAs, which
> means that there is still no interoperability between the two until
> someone sits down to map the TMAs.
> 
> What this means, when spelled out is that with SAM we would map both
> to SAM and be done, whereas you need to map XTM -> SAM, SAM ->
> SAM-TMA, and STM -> STM-TMA, and then align the STM-TMA and the
> SAM-TMA. You could obviously do XTM -> SAM-TMA directly, but that
> would still leave you with one more step than we use.

Note however that, when topic maps are based on the TMM, there is no
mapping between SAM and SAM-TMA. The SAM is the SAM-TMA, so the
one-more-set argument doesn't actually count.


Jan


> 
> As for the claimed benefits of STM compared to XTM I do agree that
> some of them are real, but personally I would say that having only one
> syntax is much more important than those benefits, simply for
> marketing reasons.

> 
> | It is also designed to show that the code bases for STM users can
> | have much in common with the code bases for SAM users.
> 
> Indeed. I estimate that it would only take a couple of hours to add
> STM support to the Omnigator.
> 
> --
> Lars Marius Garshol, Ontopian         <URL: http://www.ontopia.net >
> GSM: +47 98 21 55 50                  <URL: http://www.garshol.priv.no >
> 
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-- 
Jan Algermissen                           http://www.topicmapping.com
Consultant & Programmer	                  http://www.gooseworks.org