from the whiteboard f2f dicussion

Provider Policy:
<Policy> 
  <A/> 
  <B/>
  <C wsp:Optional="true"/>
  <D wsp:Ignorable="true"/>
</Policy> 

Requestor Policy:
<Policy> 
  <A/> 
  <B/>
  <E wsp:Optional="true"/>
  <F wsp:Ignorable="true"/>
</Policy>

Lax intersection yields:
<Policy> 
  <A/> 
  <B/> 
  <A/> 
  <B/>
  <D wsp:Ignorable="true"/>
  <F wsp:Ignorable="true"/>
</Policy> 

There is a policy <Z/> that the Provider knows about, and a policy <Y/>
that the Requester knows about.  It does not matter whether these are
optional or ignorable.

Style \             WILL       | MUST NOT       | MAY         | WILL NOT
AIN Vocabulary      A, B, D, F   E                Y, Z          C
AIN Closed          A, B, D, F   E, Y, Z                        C
AIN Client Vocab    A, B, D, F   E, Y             Z             C
Open World          A, B, D, F                    C, E, Y, Z 


                                                  Out of Scope
Requestor as entity that engages an interaction
AIN Client Vocab    A, B, F      E                Z, Y, C, D 
                                                  Provider as recipient


Provider as entity that engages an interaction
AIN Client Vocab    A, B, D      C                Z, Y, E, F
                                                  Requestor as recipient
 

Cheers,

Christopher Ferris
STSM, Software Group Standards Strategy
email: chrisfer@us.ibm.com
blog: http://www.ibm.com/developerworks/blogs/page/chrisferris
phone: +1 508 377 9295