[CESG] Comment on the CSS Area portion of the CCSDS strategic plan

Tue Aug 11 15:20:04 UTC 2015

Keith,

it looks good to me. Thanks you!

__Mario

From:   "Scott, Keith L." <kscott at mitre.org>
To:     "Mario.Merri at esa.int" <Mario.Merri at esa.int>, 
Cc:     "Nestor.Peccia at esa.int" <Nestor.Peccia at esa.int>, Brian Oliver 
<briano at aiaa.org>, "cesg at mailman.ccsds.org" <cesg at mailman.ccsds.org>
Date:   11/08/2015 17:01
Subject:        Re: [CESG] Comment on the CSS Area portion of the CCSDS 
strategic plan
Sent by:        cesg-bounces at mailman.ccsds.org

OK, and yes, there is an historical inconsistency there.  I think what 
you?re suggesting is the same thing I want ? to get people (like MOIMS, 
SOIS, etc.) to think of applications over network rather than just 
applications (and not thinking of what?s under them, but probably assuming 
link).  SIS took on ?applications' like CFDP and AMS, though our main 
focus is network and transport (and maybe I should add in ?application 
support? protocols per Peter?s email.  I?ve always had difficulty with 
?application support' (e.g. HTTP, I think, can be used for both, depending 
on context; when I invoke ftp from the command line, I think of it as THE 
application I?m using, but if some other application invokes an ftp file 
transfer, is FTP then an application service?).  To the transport layer, 
AMS looks like an application, but I concur that it?s intended to be used 
by OTHER applications as a ? well, service, rather than a ?direct-user? 
application.  Maybe I want people to think of ?application-over-network OR 
application-over-network-service?.

I?ve revised the text to add ?application-service? protocols in the 
initial definition, and changed goal 3 to ?develop application support 
protocols that facilitate??

?keith

From: "Mario.Merri at esa.int"
Date: Monday, August 10, 2015 at 9:46 AM
To: "Scott, Keith L."
Cc: Brian Oliver, CCSDS Exec, Nestor Peccia
Subject: Re: [CESG] Comment on the CSS Area portion of the CCSDS strategic 
plan

Keith, 

1) 3rd goal: I proposed that change to make the goal consistent with your 
proposed change in the 2nd paragraph on top where you substituted 
"Application" with "Transport". No problem in leaving "applications", but 
then you should better qualify or limit the goal. Below a few relevant 
considerations from my side.

Video and Audio: my understanding is that these WGs aim at identifying 
interoperable solutions in terms of communications, protocol and data 
formats. We had already many joint meetings with Rodney on having on top 
of this standard Video/Camera services that could be based on MO Services. 
I would think the same apply to Voice. AMS is concerned with message 
transfer, so it is still at transport level. CFDP is a file transfer 
mechanism: there is already an identified MO service,  the File Management 
Service, that will use CFDP if this is required by the mission.

2) I think that there is no disagreement here. The main reason of my 
proposed change is that the MOIMS is not developing applications, but data 
(e.g. NAV formats) and services (e.g. MO services), therefore technically 
there is no "MOIMS application". 

Regards, 

__Mario 

From:        "Scott, Keith L." <kscott at mitre.org>
To:        "Mario.Merri at esa.int" <Mario.Merri at esa.int>, 
Cc:        Brian Oliver <briano at aiaa.org>, "cesg at mailman.ccsds.org" <
cesg at mailman.ccsds.org>, "Nestor.Peccia at esa.int" <Nestor.Peccia at esa.int>
Date:        10/08/2015 15:14
Subject:        Re: [CESG] Comment on the CSS Area portion of the CCSDS 
strategic plan

Mario, 

Thanks for the feedback. 

I?d like to leave ?applications? in the third SIS goal, at least for the 
moment.  We?ve got the Voice and Motion Imaging WGs finishing up their 
work, and SIS is also home to things like CFDP and AMS.  I do agree that 
MOIMS owns at least a large piece of the ?applications? space within CCSDS 
and it is NOT SIS? intent to pursue application development where such 
applications can be taken on by other areas (e.g. MOIMS, SOIS, CSS).

You also replaced ?MOIMS applications over SIS internetworks? with ?MOIMS 
data and services over SIS internetworks?.  I?m fine with that but I 
thought there was an advantage (in promoting the SIS view of the world, at 
least) to ?applications? there as it reinforced the notion that SIS was 
doing internetwork stuff and the things running OVER the internetwork were 
applications.  Regardless of the language, this (apps over network) is the 
view SIS would like to promote.  Are you strongly in favor of the ?data 
and services? language?  Is there a reason for your suggested change that 
I?m missing? 

V/r, 

?keith 

From: "Mario.Merri at esa.int"
Date: Monday, August 10, 2015 at 8:56 AM
To: "Scott, Keith L."
Cc: Brian Oliver, CCSDS Exec, Nestor Peccia
Subject: Re: [CESG] Comment on the CSS Area portion of the CCSDS strategic 
plan

Hi Keith, 

my comments embedded. Please note that for some reason, Word has decided 
to use the same colour (red) for both your and my changes, at least on my 
computer. I've unsuccessfully tried to change it.

Regards, 

__Mario 

From:        "Scott, Keith L." <kscott at mitre.org>
To:        "Nestor.Peccia at esa.int" <Nestor.Peccia at esa.int>, 
Cc:        Brian Oliver <briano at aiaa.org>, "CESG -- CCSDS-Engineering 
Steering Group \(cesg at mailman.ccsds.org\)        \(cesg at mailman.ccsds.org
\)" <cesg at mailman.ccsds.org>
Date:        10/08/2015 14:18
Subject:        Re: [CESG] Comment on the CSS Area portion of the CCSDS 
strategic plan
Sent by:        cesg-bounces at mailman.ccsds.org

Proposed changes to the SIS Strategic Plan attached as a Word Document 
with Track Changes on.

V/r, 

?keith 
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