Hi,

This is my YANG doctors review of draft-ietf-opsawg-rfc5706bis-01.

This document contains general guidelines for operational
considerations in IETF documents.  From a YANG point of view, it
doesn't contain any YANG models, but provides some guidelines on when
and how to use YANG.

I have just one question and it is regarding the recommendations for
Information Models (IM).  The draft has an implicit recommendation in
section 5.3:

  Although this document recommends using English text (the official
  language for IETF specifications) to describe an Information Model,
  including a complementary YANG module helps translate abstract
  concepts into implementation-specific Data Models.

It later says in 5.3.1:

  When defining an Information Model using YANG Data Structure
  Extensions [...]

It is not clear to me what you mean here.  In section 5.3 it seems you
recommend including a Data Model YANG module (not an IM, since the IM
is in english text).  But then in 5.3.1 you mention a YANG module
for the IM as well, but there is no other discussion about using YANG
for the IM.

Also, I think it would be clearer to have an explicit recommendation
in section 5.3:

  This document recommends using English text...


/martin