[Cesg-all] FW: ISO/IEC 9646-7, Information technology, Part7:
Implementation Conformance Statements - Implementation Conformance
testing methodology and framework
Shames, Peter M (313B)
peter.m.shames at jpl.nasa.gov
Fri Apr 15 12:02:13 EDT 2011
Hi Chris,
Good to hear from you. I have to confess to being a little confused as to
just which "hat" you are wearing in the case of this response. I was
asking the question about PICS in the context of the CCSDS CESG, addressed
to you (and the others) in our AD roles. You appear to have answered as a
member of ESA / ESTEC implementers "Those of us involved with protocol
development have managed pretty well so far without formal guidance from
CCSDS".
Within the CCSDS context you argued strongly for a requirement on all
CCSDS standards to include a PICS Pro Forma. Others agreed with you,
including me as I recall. But now the rubber must meet the road. The CMC
has mandated that we do this. The question now before us as CCSDS ADs is
just how to implement the inclusion of PICS Pro Formae within the CCSDS
organization.
So, in the context of CCSDS, and as the SOIS AD, just how do you propose
that we implement the use of PICS that you advocated? Do you agree with
the formulation of the new policy that I proposed (at CMC and CESG Chair
request)? Do you think we need to provide the CCSDS WGs and document
editors some concrete guidance on just what a PICS Pro Forma is? Should
we provide them with some examples of good PICS Pro Formae to emulate? Or
are you proposing that we just point the CCSDS technical people at the ISO
PICS recommendation, all 68 pages of it, and say "Do that"?
I know we all know this, but I will restate it anyway: What any given
agency chooses to do with the resulting document form and recommended
practices, and what they choose to implement, is an entirely separate
issue from what CCSDS as an organization does to create recommended
standards and practices.
Regards, Peter
On 4/14/11 11:26 PM, "Chris.Taylor at esa.int" <Chris.Taylor at esa.int> wrote:
>Peter, I am certainly an advocator of the use of PICs but at the moment
>there
>are no resources to produce a yellow book and I anyway question the real
>need. Those of us involved with protocol development have managed pretty
>well
>so far without formal guidance from CCSDS, so why not just reference the
>ISO
>standard and leave it at that.
>
>Regards,
>//ct
>
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> |"Shames, Peter M (313B)" <peter.m.shames at jpl.nasa.gov>
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> |CCSDS Engineering Steering Group - CESG All
><cesg-all at mailman.ccsds.org>
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>| Cc: |
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> |Tom Gannett <thomas.gannett at tgannett.net>, Mike Kearney
><Mike.Kearney at nasa.gov>
> |
>
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>|------------>
>| Date: |
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> |14/04/2011 17:39
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> |[Cesg-all] FW: ISO/IEC 9646-7, Information technology, Part7:
>Implementation Conformance Statements - Implementation Conformance
>testing |
> |methodology and framework
> |
>
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> |cesg-all-bounces at mailman.ccsds.org
> |
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>
>Dear CESG Colleagues,
>
>In reference to the note I sent out earlier in the week on the proposed
>PICS
>Pro Forma update to the CCSDS Procedures, the Secretariat has contacted
>ISO
>and made a copy of ISO/IEC 9646-7 available to us for our use. See the
>appended note to locate it in the CWE.
>
>This is a 68 page document and it provides a very complete discussions of
>different kinds of PICS Pro Formae, distinguishes between single protocol
>and
>application profile PICS, and otherwise treats how to use this in
>documented
>a standard and also how to use it to document the testing of a standard
>and
>any implementations of a standard for compliance.
>
>I question whether we will want all of this material in the CCSDS
>Procedures,
>even in an Annex. An Annex of no more than 5 pages seems appropriate,
>but it
>will be very difficult to provide in that limited space a very complete
>coverage of the subject. Perhaps that will be enough, if done well, but
>it
>is likely to result in a rather uneven treatment of the topic by our
>document
>editors. So we are left with the question of whether we should also
>consider
>adding a new CCSDS Yellow Book for PICS Pro Forma, PICS, and Testing that
>incorporates much of what is in the ISO doc, but tailors it for our
>purposes.
>This would then be a companion to the updated CCSDS Procedures and Pubs
>manuals.
>
>Does anyone have an opinion about this? Does anyone want to volunteer to
>produce this edited Yellow Book? I seem to recall that Chris Taylor was
>someone who was really keen on the inclusion of PICS Pro Formae in CCSDS
>docs. Perhaps he has the resources to get this done?
>
>Regards, Peter
>
>
>
>
>From: Nick Tongson <nickt at aiaa.org>
>Date: Thu, 14 Apr 2011 06:57:47 -0700
>To: Adrian Hooke <Adrian.J.Hooke at nasa.gov>, Peter Shames <
>peter.m.shames at jpl.nasa.gov>
>Cc: Mike Kearney <Mike.Kearney at nasa.gov>
>Subject: FW: ISO/IEC 9646-7, Information technology, Part7: Implementation
>Conformance Statements - Implementation Conformance testing methodology
>and
>framework
>
> Peter, Adrian: ISO doesn¹t have the Word version of ISO/IEC 9646-7
>but
> I did get permission to circulate the PDF files to those who need it
> within the CCSDS community. One file is large so I¹ve uploaded it on
> the CWE (CESG/CWE Private/Reference Documents).
>
>
>http://cwe.ccsds.org/cesg/docs/Forms/AllItems.aspx?RootFolder=%2Fcesg%2Fdo
>cs%2FCWE%20Private%2FReference%20Documents&
>
>
>
>Please be discreet in your distribution.
>
> Nick
>
> Nick Tongson
> For the Secretariat of the Consultative Committee for Space Data
> Systems
> American Institute of Aeronautics and Astronautics
> 1801 Alexander Bell Drive
> Suite 500
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