Proposed Resolution for Rel22

Here is a proposed resolution for Rel22:

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REL-22 Spec  meta Editorial Unassigned Tom Rutt  
Title: Optionality 
Description: The use of the term OPTIONAL needs to be 
revisited particularly in a specification of this nature where 
interoperability is an explicit goal and RFC 2119 has been 
referenced.  [see original spec] 
Proposal: Go to email on this issue 
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Proposed Resolution:
We inlude Conformance section in the spec.
The word "OPTIONAL " in the spec means
the element or attribute is optional to be in a message.
But it doesn't say anything about optionality
for implementation.
Comformance section should mention about
the optionality for implementation.
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Any comments?

Thanks,

Iwasa