Creation/update of the DCCI dom tree

Hi all,
I am asking myself : "which component has the responsability to create and
update a property in the DCCI DOM tree ?"

This is how i interpret the specification (Candidate Recommendation 21
December 2007) :
Since the specification doesn't describe any IDL to create element in the
DOM tree, i believe an external module asks the DCCI module for a property,
using the "searchProperty" method. It gets a nodelist. This external module
updates the nodelist. The DCCI Module detects the modifications on instances
of the nodelist and fires up the DCCI-prop-change.

The question is : is my interpretation correct or am i missing something ?

I looked in the archive for an answer but didn't find any.

Great day to you all.

Franck