DR 09-0211: WML: Custom XML and Smart Tags

[MURATA Makoto (FAMILY Given)]

I like the idea of making this sentence non-normative.  However, why
"Guidance"?  I prefer "Note".

I did some research and find some facts:

1) 29500 now uses "Guidance", "Note", and "Rationale".

2) "Guidance" and "Rationale" do not appear in ISO/IEC Directives, Part 2,
   "Rules for the structure and drafting of International Standards".

What is the intended difference among "Guidance", "Rationale", and 
"Note"? Do we really need "Guidance" and "Rationale"?  It might be 
a good idea to submit another DR for this.

BTW, Directives Part 2 is a must for us.  It is available at:

http://isotc.iso.org/livelink/livelink?func=ll&objId=4230456&objAction=browse&sort=subtype


Cheers,
Makoto