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<p class="MsoNormal">Dear Margherita,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I think we may have arrived at the same conclusion, but by different paths, and probably for different reasons. You said "<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I do not see another option than escalating the decision
to the CMC, given that at this point in time this is no longer a technical discussion, and that there is no consensus within the CESG". Actually, I do not think that we have done the work within the CESG to analyze and discuss these re-stated positions, but
it may well be that at this point no amount of discussion within the CESG will resolve anything.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal">Of concern to me is that you seem to be making the assertion that all of these issues should only be discussed within the working groups. From my point of view these issues have been discussed there, and the result of those discussions
can be seen in the rather convoluted set of standards that allow only certain things and explicitly disallow others. Many of these disallowed, or even removed, options are technically feasible, and are, in fact, flying very successfully on various missions
today. As a result we have missed (or discarded) the opportunity to create as consistent a set of leading standards as we can.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The reason why this issue was raised in a CESG Poll is because the CESG has been explicitly given the role of ensuring the consistency of standards across WG and of anticipating stakeholder needs. This is clearly stated within the CCSDS
Organization and Procedures document, CCSDS A02.1-Y-4. To quote:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<b><span style="font-size:12.0pt;font-family:"TimesNewRomanPS",serif">2.3.2.2 CESG Operating Principles
<o:p></o:p></span></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<span style="font-size:12.0pt;font-family:TimesNewRomanPSMT">d) </span><i><span style="font-size:12.0pt;font-family:"TimesNewRomanPS",serif">Consistency</span></i><span style="font-size:12.0pt;font-family:TimesNewRomanPSMT">. An important job of the CESG is
to watch over the output of all of the WGs to help prevent CCSDS specifications that are at odds with each other. This is why ADs and DADs are required to review the drafts coming out of Areas other than their own as part of the consensus process leading up
to their adoption into the program of work. The quality of the CCSDS Recommended Standards comes both from the review that they get in the WGs and the review that the WG products get from the CESG.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<span style="font-size:12.0pt;font-family:TimesNewRomanPSMT">e) </span><i><span style="font-size:12.0pt;font-family:"TimesNewRomanPS",serif">Anticipation</span></i><span style="font-size:12.0pt;font-family:TimesNewRomanPSMT">. The CESG must be able to look
ahead and anticipate new standards that stakeholders will most likely require, and begin prospective planning for their development so that there is sufficient time to complete them once a hard requirement emerges. This implies working with technology and
experimental communities to vector research resources into the standardization process.
</span><o:p></o:p></p>
<p class="MsoNormal">This responsibility is, in fact, restated in sec 2.3.2.3 as well. In my opinion trying to push this significant issue back into a WG is to shirk that CESG responsibility.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regardless, it appears that you feel escalating this to the CMC is the only viable path forward. At this point I must agree.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards, Peter<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">"Margherita.di.Giulio@esa.int" <Margherita.di.Giulio@esa.int><br>
<b>Date: </b>Wednesday, April 15, 2020 at 5:25 AM<br>
<b>To: </b>Peter Shames <peter.m.shames@jpl.nasa.gov><br>
<b>Cc: </b>Bernie Edwards <bernard.l.edwards@nasa.gov>, CCSDS Engineering Steering Group - CESG Exec <cesg@mailman.ccsds.org>, Dennis K Lee <dennis.k.lee@jpl.nasa.gov>, Gilles Moury <Gilles.Moury@cnes.fr>, Greg Kazz <greg.j.kazz@jpl.nasa.gov>, Jon Hamkins <jon.hamkins@jpl.nasa.gov>,
Kenneth Andrews <kenneth.s.andrews@jpl.nasa.gov>, "Massimo.Bertinelli@esa.int" <Massimo.Bertinelli@esa.int>, Victor Sank <victor.j.sank@nasa.gov><br>
<b>Subject: </b>Re: [EXTERNAL] [CESG] 131.3 unresolved Poll: SLS position paper<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
</div>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Dear Peter,
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I take note of the NASA Position Paper that you delivered with your e-mail on 3rd April.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I remark that the right forum for an Agency's position paper is within the affected WG(s) and Area. Only after the relevant technical discussion in those forums has taken place , the CESG may/will
intervene, if needed.</span> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">The CESG is , in fact, supposed to sort out technical issues that may arise between Areas ( or between WGs). It is not supposed to decide upon a roadmap for technical documentation, when that
roadmap – which entails the way forward, the concept papers(s), the new projects, etc. - needs to be produced as the result of an Agency's position paper.
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">It is only within the WGs that all (interested) Agencies are represented and can fairly support the discussion.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I notice that the NASA's Position Paper implies a re-assessment of the approach for the (set of ) coding-related document(s), whilst the existing approach did get WG’s consensus in previous CCSDS
sessions, notably Berlin and Mountain View, if I remember well. </span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Accordingly, I request that whichever re-assessment is supposed to be done now , it shall be done
<i>first </i>in the appropriate forum (=WG/Area). </span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Again, the CESG will then discuss the outcome of the WGs’ re-assessment, if needed.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Concerning the unresolved Poll for the DBV-S2 standard, which has been produced according to the existing roadmap, I do not see another option than escalating the decision to the CMC, given that
at this point in time this is no longer a technical discussion, and that there is no consensus within the CESG</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Kind regards.</span>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Margherita</span> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">--------------------------------------------------------------<br>
</span><b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#00A1E0">Margherita di Giulio</span></b>
<br>
<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#5F5F5F">Ground Station Systems Division</span>
<br>
<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#5F5F5F">Backend Software Section (OPS-GSB)</span>
<br>
<br>
<br>
<b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#5F5F5F">European Space Agency ESA/ESOC</span></b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#5F5F5F"><br>
Robert-Bosch-Str. 5<br>
D-64293 Darmstadt - Germany<br>
Tel: +49-6151-902779<br>
e-mail: Margherita.di.Giulio@esa.int</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
<br>
</span><br>
<br>
<br>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">From: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"Shames, Peter M (US 312B)" <peter.m.shames@jpl.nasa.gov></span>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">To: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"Margherita.di.Giulio@esa.int" <Margherita.di.Giulio@esa.int>, "CCSDS Engineering Steering Group - CESG
Exec" <cesg@mailman.ccsds.org></span> <br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Cc: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"Massimo.Bertinelli@esa.int" <Massimo.Bertinelli@esa.int>, "Moury Gilles" <Gilles.Moury@cnes.fr>, "Hamkins,
Jon (US 3300)" <jon.hamkins@jpl.nasa.gov>, "Andrews, Kenneth S (US 332B)" <kenneth.s.andrews@jpl.nasa.gov>, "Victor Sank" <victor.j.sank@nasa.gov>, "Kazz, Greg J (US 312B)" <greg.j.kazz@jpl.nasa.gov>, "Bernie Edwards" <bernard.l.edwards@nasa.gov>, "Lee, Dennis
K (US 332G)" <dennis.k.lee@jpl.nasa.gov></span> <br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Date: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">03/04/2020 22:14</span>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Subject: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">Re: [EXTERNAL] [CESG] 131.3 unresolved Poll: SLS position paper</span>
<o:p></o:p></p>
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<o:p> </o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Dear Margherita and CESG members,<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
During yesterday's CESG WebEx I said that I would provide a revision of the original NASA position paper on how to resolve this issue. That is attached. It is a refinement of the position that we presented before, and it specifically tries to address the
technical issues that Gilles and others have raised.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
You will see that this is endorsed by the relevant set of NASA participants in the RFM, C&S, SLP, and Opt WGs. They all had a role in refining and reviewing these materials.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Lastly, you will find in the backup an analysis showing the difference in outcome between the approach proposed here and what would result from the present trajectory as documented in Gilles note. We all believe that what was, in effect, implied by the changes
to the DBV-S2 standard really represent what should be an architecturally significant shift in how the SLS standards, as a group, may be applied to future missions. <o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
We will be missing a significant opportunity if we do not take the time now to adopt this as a uniform position across all of the affected SLS standards.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
While we all must respect the crucial role of the CCSDS Working Groups in developing and validating technically sound standards, we must also remember that the CESG has been assigned the role for ensuring technical quality, coherence, and consistency across
the standards and across the areas.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><br>
<b><span style="font-size:12.0pt">2.3.2.3 CESG Responsibilities </span></b><br>
<span style="font-size:12.0pt">The CESG is specifically responsible for the following:
</span><br>
<span style="font-size:12.0pt">a) maintaining and upholding the overall technical quality and consistency of the evolving set of CCSDS Recommended Standards and Practices;
</span><o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
And that required CESG review is the context within which these issues were identified. This is not just a Working Group issue.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Best regards, Peter<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<b><span style="font-size:12.0pt">From: </span></b><span style="font-size:12.0pt">CESG <cesg-bounces@mailman.ccsds.org> on behalf of Gilles Moury <Gilles.Moury@cnes.fr><b><br>
Date: </b>Saturday, March 28, 2020 at 11:25 AM<b><br>
To: </b>"Margherita.di.Giulio@esa.int" <Margherita.di.Giulio@esa.int><b><br>
Cc: </b>"Massimo.Bertinelli@esa.int" <Massimo.Bertinelli@esa.int>, CCSDS Engineering Steering Group - CESG Exec <cesg@mailman.ccsds.org><b><br>
Subject: </b>[EXTERNAL] [CESG] 131.3 unresolved Poll: SLS position paper</span><o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Dear Margherita,<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
I hope you and your family are able to stay safe & healthy.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
As a response to action item taken during March 10 CESG telecon, please find attached SLS position paper regarding 131.3 unresolved poll.<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Best regards,<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
<o:p></o:p></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt">
Gilles<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#0060A0">Gilles MOURY</span></b>
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<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#0060A0">Senior Adviser On-Board Architecture & Avionics</span></b>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#0060A0">Architecture, Validation & Integration Department
</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#0060A0">18 avenue Edouard Belin 31401 Toulouse Cedex 9</span><o:p></o:p></p>
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