[Cesg-all] Fw: [CESG] Clarification of term "Expert Group"

[Nestor.Peccia at esa.int]

FYI

----- Forwarded by Nestor Peccia/esoc/ESA on 16/03/2015 09:28 -----

From:   "Shames, Peter M (312B)" <peter.m.shames at jpl.nasa.gov>
To:     CMC <cmc at mailman.ccsds.org>, 
Cc:     CCSDS Engineering Steering Group - CESG Exec 
<cesg at mailman.ccsds.org>
Date:   13/03/2015 18:52
Subject:        [CESG] Clarification of term "Expert Group"
Sent by:        cesg-bounces at mailman.ccsds.org



Dear CMC and CESG members,

The CMC placed an action to:
- [Decribe what is meant by the] Use of term Expert Groups in Areas and 
Project Development    

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.

The term "expert group" was specifically introduced in the XML Namespace 
Policy document (CCSSDS 315x1y0), but it has broader potential 
applicability:

"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." 
 

The SANA YB (CCSDS 313x0y1) also introduced the term of a "designated 
expert" for a registry:
"designated expert. The expert for that registry is assigned by the CESG 
based on the WG recommendation"
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. 
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.
SEA recommends definition of an new CCSDS entity called an "Expert Group", 
with the following characteristics:
Created at request of a WG, SIG, Area, or the CESG itself
Creation is approved by the CESG
Role is to provide long term curation or management for one or more 
registries
Registries are managed in the SANA, the Expert Group supports SANA 
operations of the registry as stated in CCSSDS 315x1y0
Membership and chair proposed by the creating group and approved by the 
CESG
Membership is required to have expertise in the technical topic that is 
the subject of the registry
Expert Group may be disbanded by the CESG
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.

Regards, Peter (for the CESG)

________________________________________________________

Peter Shames
CCSDS System Engineering Area Director

Jet Propulsion Laboratory, MS 301-490
California Institute of Technology
Pasadena, CA 91109 USA 

Telephone: +1 818 354-5740,  Fax: +1 818 393-6871

Internet:  Peter.M.Shames at jpl.nasa.gov
________________________________________________________

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.

Niklaus Wirth



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