rewrite of section 4

Dear all,

Here is a rewrite of section 4 (before 4.1), in an attempt to make more 
concrete my comments on the current state of the spec and its single 
focus on the UA:
http://perso.enst.fr/~dufourd/wia_integrated.htm

To show what is new and what is old, here is another version with Word 
revision marks exported to HTML:
http://perso.enst.fr/~dufourd/uaTOwia.htm
There are spurious marks (such as one "should" replaced by a... 
"should"). But I hope it makes it easier to see the changes.
Best regards
JC

-- 
JC Dufourd
Directeur d'Etudes/Professor
Groupe Multimedia/Multimedia Group
Traitement du Signal et Images/Signal and Image Processing
Telecom ParisTech, 37-39 rue Dareau, 75014 Paris, France
Tel: +33145817733 - Mob: +33677843843 - Fax: +33145817144

Received on Thursday, 7 June 2012 16:15:46 UTC