[Sls-mhdc] [EXTERNAL] 124.0-B white paper

Wed Oct 16 00:42:38 UTC 2019

Dave,

Thank you for sharing the source code. I plan to not look at it for now, because a Blue Book is supposed to be a complete stand-alone specification, and I don't want my interpretation of it to be influenced by having seen a source code implementation. But I hope that at least a few folks on the WG do look at it, as this certainly might help to ensure that the standard is written as intended.

A resolution requesting CCSDS management polling to begin Agency Review is a decision reached by consensus of the Working Group. If the revised White Book is ready (or nearly ready) for Agency Review, then I'm confident that we can achieve this consensus at the meeting or shortly afterwards. If the White Book is not ready, then Agency Review doesn't really benefit you or anyone else on the Working Group.

You made a request to the working group to provide comments 2 weeks before the meeting. This is not an inherently unreasonable timeline, but according to MHDC-A-1905-5(b), the agreed-on due date for comments on the White Book is at the Fall 2019 meeting.

I also expect that Working Group members will be interested in related Action Items MHDC-A-1905-6(b) and 1905-7. Both are past their due dates, and I'm not aware that either has been completed.

Best Regards,
Aaron

On Oct 15, 2019, at 6:49 AM, David.Evans at esa.int<mailto:David.Evans at esa.int> wrote:

Dear working group members,

I have placed a well commented C source code implementation of 124 (one for compression and one for decompression) on the CWE drive - in case anyone finds it useful. It includes a help.
https://cwe.ccsds.org/sls/docs/SLS-MHDC/CWE%20Private/124.0-B/124_compress.c
https://cwe.ccsds.org/sls/docs/SLS-MHDC/CWE%20Private/124.0-B/124_decompress.c

ESA is aiming to get the working group's go ahead for agency review at the end of the meeting in Darmstadt. As such, I will update the standard with the comments recieved so far in preparation. Since there has been ample time for review and no more major comments have been raised, we see this as a reasonable goal.

Best regards.
Dave

From:        David Evans/esoc/ESA
To:        sls-mhdc at mailman.ccsds.org<mailto:sls-mhdc at mailman.ccsds.org>
Date:        08/10/2019 12:49
Subject:        124.0-B white paper
________________________________

Dear working group members,

I only got feedback from Mark (thank you!) so I presume there are no major comments from anyone else.

See you all in Darmstadt.

Best regards,
Dave

From:        David Evans/esoc/ESA
To:        sls-mhdc at mailman.ccsds.org<mailto:sls-mhdc at mailman.ccsds.org>
Date:        16/09/2019 10:23
Subject:        124.0-B white paper
________________________________

Dear working group members,

I would like to request that any major comments on the 124 standard white paper issued in August are provided by October 7th. That would give ESA a couple of weeks to make any corrections before the spring meeting in Darmstadt. We can go through additional minor comments and the answers to the major comments  in the meeting.

Best regards,
Dave

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