[CESG] PICS text in A02.1-Y-2.1d

[Nestor.Peccia at esa.int]

Peter

ESA has analyzed the modifications proposed by you, and has the following 
comments

Annex B.2.1, a, last paragraph.
Blue Books defining protocols must include a Protocol Implementation 
Conformance Statement (PICS) proforma as a normative annex
To be replaced by
Blue Books defining communications protocols must include a Protocol 
Implementation Conformance Statement (PICS) proforma as a normative annex

Annex F, A.1 2nd paragraph
ESA's comment is on the words "terse style" to document what is mandatory 
and what is optional.
CCSDS Publication Manual is clear on that
The following conventions apply for the normative specifications in this 
Recommended Standard:
a) the words ?shall? and ?must? imply a binding and verifiable 
specification;
b) the word ?should? implies an optional, but desirable, specification;
c) the word ?may? implies an optional specification;
d) the words ?is?, ?are?, and ?will? imply statements of fact.
NOTE ? These conventions do not imply constraints on diction in text that 
is clearly informative in nature.
We suggest to reference the Publication Manual for mandatory / optional 
specs instead to leave to every book-captain his/her  free interpretation 
of what "terse style" means

Let us know your views. Perhaps we can save the telecon planned for next 
week.

ciao
nestor
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