Proposal to resolve Rel 92

[Tom Rutt <tom@coastin.com>]

The following text was proposed by Jacques at the last F2F meeting, but 
did not have a formal resolution attached to it.

I propose we resolve Rel 92 by adding the following conformance clause, 
just before the existing section 7 (references).

"
7   Conformance

In order to be conform to this specification, an implementation must 
satisfy all the
following conditions:

·  It complies with the following interpretation of the keywords 
OPTIONAL and MAY:  When these keywords apply to the behavior of the 
implementation, the implementation is free to support these behaviors or 
not, as stated in [RFC2119].

·  If it has implemented optional features and/or behavior defined in 
this specification, it MUST be capable of interoperating with another 
implementation that has not implemented the optional syntax, features 
and/or behavior.  It MUST be capable of processing the
prescribed failure mechanism for those optional features it has chosen 
to implement.

·  If it has chosen NOT to implement optional features, it is capable of 
interoperating with another implementation that has chosen to implement 
these. It MUST be capable of generating the prescribed failure mechanism 
for those optional features it has chosen to NOT implement.
"
 

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Tom Rutt		email: tom@coastin.com; trutt@fsw.fujitsu.com
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