<font size=2 face="sans-serif">FYI</font>
<br>
<br><font size=1 color=#800080 face="sans-serif">----- Forwarded by Nestor
Peccia/esoc/ESA on 16/03/2015 09:28 -----</font>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Shames, Peter
M (312B)" <peter.m.shames@jpl.nasa.gov></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">CMC <cmc@mailman.ccsds.org>,
</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Cc:
</font><font size=1 face="sans-serif">CCSDS Engineering Steering
Group - CESG Exec <cesg@mailman.ccsds.org></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">13/03/2015 18:52</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[CESG] Clarification
of term "Expert Group"</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">cesg-bounces@mailman.ccsds.org</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=2 face="Calibri">Dear CMC and CESG members,</font>
<br>
<br><font size=2 face="Calibri">The CMC placed an action to:</font>
<br><font size=2 face="Calibri">- <b>[Decribe what is meant by the] Use
of term Expert Groups in Areas and Project Development </b>
</font>
<br>
<br><font size=2 face="Calibri">The following has been discussed during
the CESG telecon on 13 Mar 2015 and consensus was reached to forward this
to the CMC. The proposal under consideration is to refine and further
clarify this concept and then add it to the CCSDS Organization and Processes
Yellow Book, CCSDS A02x1y4, probably as a corriegendum.</font>
<br>
<br><font size=2 face="Calibri">The term "expert group" was specifically
introduced in the XML Namespace Policy document (CCSSDS 315x1y0), but it
has broader potential applicability:</font>
<br>
<br><font size=3 color=blue face="Times New Roman">"This document
defines a CCSDS XML Expert Group to review the requests. This group is
composed of XML experts nominated by the CESG with no pre-determined terms.
CESG may choose to change the group as it see fits." </font><font size=3 face="Times New Roman"> </font>
<br>
<br><font size=2 face="Calibri">The SANA YB (CCSDS 313x0y1) also introduced
the term of a "designated expert" for a registry:</font>
<p><font size=3 color=blue>"designated expert. The expert for that
registry is assigned by the CESG based on the WG recommendation"</font>
<p><font size=3 face="Calibri">The intent, in both of these instances,
was to identify an expert, or group of experts, who would have continuing
cognizance over the management of some CCSDS resource (XML namespace, SANA
registry) in the absence of the WG that created it. Since not all
Working Groups persist for long periods of time identifying a mechanism
for continuing management of certain registries seemed essential. Furthermore,
some registries are likely to be cross-cutting, such as the XML registry
or a "contributing organization" registry that both MOIMS Nav
and CSS SM have identified, and these need to be curated above the WG or
even Area level. In both of these current cases the origin of the
Expert Group was a WG or SIG, but the role of assigning and managing responsibility
for it was assigned to the CESG. </font>
<p><font size=3 face="Calibri">The CESG is the CCSDS technical engineering
steering organization and it is a persistent entity, as such it will exist
even if individual WGs, or even Areas, cease to exist and it has cross
cutting oversight of all CCSDS work.</font>
<p><font size=3 face="Calibri">SEA recommends definition of an new CCSDS
entity called an "Expert Group", with the following characteristics:</font>
<ul>
<li><font size=3 face="Calibri">Created at request of a WG, SIG, Area,
or the CESG itself</font>
<li><font size=3 face="Calibri">Creation is approved by the CESG</font>
<li><font size=3 face="Calibri">Role is to provide long term curation or
management for one or more registries</font>
<li><font size=3 face="Calibri">Registries are managed in the SANA, the
Expert Group supports SANA operations of the registry as stated in </font><font size=2 face="Calibri">CCSSDS
315x1y0</font>
<li><font size=3 face="Calibri">Membership and chair proposed by the creating
group and approved by the CESG</font>
<li><font size=3 face="Calibri">Membership is required to have expertise
in the technical topic that is the subject of the registry</font>
<li><font size=3 face="Calibri">Expert Group may be disbanded by the CESG</font></ul><font size=3 face="Calibri">There
are not expected to be a lot of these Expert Groups and they will be regulated
by the CESG. It is expected that any Expert Group will operate using
electronic communications such as email or the occasional telecons, as
needed. These Expert Groups are not intended to require significant
resources nor meeting rooms at bi-annual meetings. The creation and
operation of any Expert Group may be described in a charter, but this is
TBD.</font>
<br>
<br><font size=3 face="Calibri">Regards, Peter (for the CESG)</font>
<br>
<br><font size=2 face="Helvetica">________________________________________________________<br>
<br>
Peter Shames<br>
CCSDS System Engineering Area Director<br>
<br>
Jet Propulsion Laboratory, MS 301-490<br>
California Institute of Technology<br>
Pasadena, CA 91109 USA <br>
<br>
Telephone: +1 818 354-5740, Fax: +1 818 393-6871<br>
<br>
Internet: </font><a href=Peter.M.Shames@jpl.nasa.gov><font size=2 color=blue face="Helvetica"><u>Peter.M.Shames@jpl.nasa.gov</u></font></a><font size=2 face="Helvetica"><br>
________________________________________________________<br>
<br>
We must recognize the strong and undeniable influence that our language
exerts on our ways of thinking and, in fact, delimits the abstract space
in which we can formulate - give form to - our thoughts.<br>
<br>
Niklaus Wirth<br>
<br>
</font>
<br>
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