Question on 3.8.2, "Model group schema component"

Hello,

(My first posting to this list. Hope I'm not off-topic...)

In the table just below "3.8.2 XML Representation of Model Group Schema 
Components", one can find:

<<
{particles}    A sequence of particles corresponding to all the <all>, 
  <choice>,  <sequence>, <any>, <group> or <element> items among the 
[children], in order.
 >>

As far as I understand, however, there can be no <all> item in 
[children]. Am I right ?

Also, the table title is "XML Representation Summary: all Element 
Information Item", but it actually deals with choice and sequence 
Elements as well.


Cheers,

Alain Frisch