Inheritance in DITA / XLIFF

Hi Yves,

You mentioned at the editor's call the difference of inheritance in DITA
 / XLIFF versus ITS.

I had a short look at
http://www-306.ibm.com/software/globalization/topics/dita/transdtd.jsp

and my impression is that it is the role of defaults from the general
DITA DTD or a a specialized one is which you were mentioning.

Do you have the impression that ITS does s.t. different than DITA /
XLIFF, or is it just s.t. "additional"? If the later is the case, we
don't need to restructure our inheritance / default descriptions, but
just add s.t. for translatability, e.g.

   1.

      Implicit local selection in instance documents (data category
attributes on a specific element)
   2.

      Local selections in instance documents (using a documentRules element)
   3.

      Global selections in an external file (using a documentRules element)
   4.

      Selections via defaults for data categories, see Section 6.1:
Position and Default Selections of Data Categories

and for translatability: if a specification of defaults is present (we
would have to define a format for that), it has precedence other 4.

If you agree, this would be a bug "extending precedence to be able to
cater defaults". Otherwise, it would be "rethinking ITS" ...

Cheers,
Felix