[Om3] CD group and signature markup naming issues

[Christoph LANGE]

Dear OpenMath 3 developers,

  what was the design rationale for having different namespaces and different
element names for the same metadata markup in CDs, CD groups, and signature
dictionaries?  I'm referring to elements like CDReviewDate/CDSReviewDate and
CDName/CDGroupName.  It looks like poor man's XML namespaces, same as with
CDDefinition.  Earlier, I pleaded for renaming CDDefinition, but then I had to
agree that this would not easily be possible because of the amount of existing
CDs.  But how about infrequently used concepts like CDGroups?  Shouldn't we
unify the syntax there?  I mean, wherever it is possible and makes sense.

CDGroupURL The text occurring in the CDGroupURL element identifies the
location of the CDGroup file, not necessarily of the member Content
Dictionaries. For the syntactical requirements, see CDURL in Section 4.3.2.

This paragraph from the OM 2.0 standard says that CDGroupURL is basically the
same as CDURL.  For other metadata vocabularies, it's common to reuse the same
name, too.  In Dublin Core, there is just dc:creator, not dc:BookCreator,
dc:ArticleCreator, etc.

BTW: I wasn't able to find the current state of this markup in OM3.  The
signature and CDGroup elements somehow disappeared from OpenMath3/rnc/cd.rnc.

Cheers,

Christoph

-- 
Christoph Lange, Jacobs Univ. Bremen, http://kwarc.info/clange, Skype duke4701

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