Revised content model options for #12011 - Generic Task Type

I submit this message for possible discussion at today's 
(11-December-2007) DITA TC meeting. Below is a summary of proposed 
content models that will support proposal #12011 -- Generic Task Type. 
These content models are the result of recent discussion on the DITA TC 
list.

-Alan
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Summary:
- Optional, repeatable <note> allowed before <cmd>
- <taskbody> allows only a single <steps> element
- New <process> element to permit <ol>/<ul> constructions in <taskbody>

Proposed content models:
taskbody:
(prereq?,
 context?,
 (steps | steps-unordered | process),
 result?,
 example?,
 postreq?)
(Issue: allow <section> before and after <steps>?)

steps/steps-unordered:
Support <section> between steps:
(section?, step)+

step:
Support optional, repeatable <note> before cmd:
(note*,
 cmd,
 (info | substeps | tutorialinfo | stepxmp |  choicetable | choices)*,
 stepresult?)
Issue: allow <itemgroup> in <step>?

process:
(section?, (ol | ul))+
Issue: this would allow multiple ol/ul elements.