[Moims-dai] Digital Archive Architecture Design Document Project Plan

Mike Kearney kearneysolutions at gmail.com
Fri Dec 9 15:06:23 UTC 2016

The schedule looks fine to me, though I would hope that we can maybe do some
simplification and finish earlier.  But the total elapsed time looks right
for starters.  Lots of detail there, John, thanks for the rigorous work.   


The intent of the book colors is:  

Blue - Normative and testable

Magenta - Normative but not testable

Green - Informative (not normative).  


The decision on book color should be based on what we intend to produce (not
on who reviews it, etc.).  So if we intend to produce normative "shall"
statements, then it's magenta.  If we're going to produce non-normative
descriptive material, then it's green.   


I think we want this ADD to define things like:  There will be an
abstraction layer;  There will be bindings between the abstraction layer and
the archives that do certain things;  There will be a standardized user
interface that displays metadata, etc.      


If that's right, then it's a magenta book.  


We asked the question earlier about whether an ops concept goes in the ADD
or not, and we finally dropped the ops concept as a separate book.  An ops
concept is more of a green book, since we won't make "shall" statements
about how the system is actually operated, only about how it's intended to
be operated.  We may need to add back an informative green book with
descriptive architecture discussions and the ops concept.  Or maybe we can
make the ops concept (or rather "use cases") become part of a non-normative
annex in a magenta ADD.  


Anyhow. bottom line is that I think the ADD is probably magenta.   


   -=- Mike


Mike Kearney

Huntsville, Alabama, USA


From: MOIMS-DAI [mailto:moims-dai-bounces at mailman.ccsds.org] On Behalf Of
John Garrett
Sent: Friday, December 9, 2016 2:28 AM
To: 'MOIMS-Data Archive Ingestion' <moims-dai at mailman.ccsds.org>
Subject: Re: [Moims-dai] Digital Archive Architecture Design Document
Project Plan




One more question about the project.  Should this be a Green Book
(Informational - not a standard) or a Magenta Book (a Standard, but not a
testable protocol)?  


Most of the other CCSDS Architecture documents are Green but some others are
Magenta Books.

I thought we had discussed it just a bit and decided it should be Magenta so
it got reviewed widely.  However, the last version of our draft long-term
plan still shows this as a Green Book.


Wishing you prosperity and peace,




From: MOIMS-DAI [mailto:moims-dai-bounces at mailman.ccsds.org] On Behalf Of
John Garrett
Sent: Thursday, December 8, 2016 1:23 AM
To: 'MOIMS-Data Archive Ingestion' <moims-dai at mailman.ccsds.org
<mailto:moims-dai at mailman.ccsds.org> >
Subject: [Moims-dai] Digital Archive Architecture Design Document Project




I have an Action Item to add a project plan for Digital Archive Architecture
Design Document  to CCSDS CWE Framework.  I've attached a draft of what I
intend to enter into the CCSDS System before our Tuesday telecon (or I can
try to enter it after if people want to discuss it at the telecon.)

Please feel free to provide any updates you think are appropriate.


>From the overall DAI plan, our plan was to start this project early the
coming year and finish in 2020.  I came close but show the project ending in
early 2021.  I've created a spreadsheet with estimated times to complete all
the activities throughout the project.  I've included the one's required to
show completion dates for in the CCSDS system (the unshaded rows).  I've
also added background activities that do not need dates in the CCSDS form,
but they are activities which we need to allot time for and get through.
These are the lightly shaded rows and many of those activities are performed
by CCSDS and are out of our control.  I've assigned what I consider as
optimistic times for completion of those tasks.  Personally, based on past
experience, I think we may end up behind schedule on those items.  I've also
currently included ISO reviews in this document.  I planned with the
presumption that we will want to have concurrent CCSDS and ISO reviews.  Is
that what others expect for this document?  Those activities are shown with
darker shading.   Note that the ISO processing takes place in parallel to
the CCSDS review so the time required for the CCSDS review overlaps with ISO
processing and review.  Alternatively we could start and end the CCSDS and
ISO reviews at the same time, which we have sometimes done in the past.


Let me know what you think.


Wishing you prosperity and peace,



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