RE: [xtm-wg] Conceptual Model

[Sam Hunting <sam_hunting@yahoo.com>]

> a formal mapping from the conceptual model to the syntax.

I don't understand why one would wish to go directly from CM to angle
brackets. At least in the XTM group, there seems to have been a
(perhaps tacit) layered approach:

   CM (Conceptual Model)
   PM (Processing Model)
   syntax (Document)

Nice things about having the intermediate layer between Conceptual
Model and Syntax: (1) the PM will, we hope, serve as the data model for
TMQL to query against; (2) ditto, though work here is less advanced,
for APIs; (3) in future, it would be possible for other syntaxes than
angle brackets to express ("demand") the PM. (Note the potential
increase in power for the topic map community here, including the CM.)
And there are probably many other good reasons for this layered
approach that experienced software engineers can list...

Since TMQL certainly should not query the angle brackets, are you
saying it should query the CM? If so, how? 

And to what will the API interface? The CM or the markup? If so, how?

S.

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