[Moims-dai] Brief notes from DAI Skype call 27th Aug

Thu Aug 29 13:35:51 UTC 2019

David et al,

My proposal is to change the definition of Information Package - not
Content Information. I will try to get something out later today as I will
be traveling until next Tuesday.

Mark

On Thu, Aug 29, 2019 at 7:58 AM David Giaretta <david at giaretta.org> wrote:

> Dear DAIers
>
>
>
> The main topic of discussion was the proposed changes about Packaging –
> see the email exchanges below which preceded the meeting. The basic issue
> as I see it is that the current definition of Information Object is not
> consistent with the descriptions of SIP and DIP, and the question is what
> the best way is to fix this. I proposed text changes but Mark strongly
> disagreed with this way of doing it.
>
>
>
> ACTION: MC will propose a change to the definition of Content Information
> (or any other changes he believes will work) which would mean that we would
> not have to make the changes that have been proposed.
>
>
>
> There was a brief discussion about the proposed Purpose and Scope for the
> OAIS-IF document - see
> https://www.dropbox.com/s/o14tepnzcz5c2xh/Draft%20introductory%20statements%20for%20OAIS-IF20190729mc-DG.docx?dl=0
> . Mike thought that it might be better to add these to the existing purpose
> and scope which he wrote (see
> https://www.dropbox.com/s/xxcub9t8hw1zga1/02_White_Book_Recommended_Standard_OAIS-IF_Draft_190527%20v5.2%20%281%29.doc?dl=0
> ) because the one proposed by DG assumed too much knowledge about OAIS.
>
>
>
> These are brief notes to give a flavour of the meeting – please provide
> corrections/additions.
>
>
>
> Regards
>
>
>
> ..David
>
>
>
> *From:* MOIMS-DAI <moims-dai-bounces at mailman.ccsds.org> *On Behalf Of *David
> Giaretta
> *Sent:* 26 August 2019 16:14
> *To:* 'MOIMS-Data Archive Interoperability' <moims-dai at mailman.ccsds.org>
> *Subject:* Re: [Moims-dai] Notes of Skype call Tuesday 20th Aug 2019 and
> preparation for Skype call next week
>
>
>
> Hi Mark
>
>
>
> I’ve put my responses to your and John’s comments at
> https://www.dropbox.com/s/5727jlis2lnzuvu/OAIS%20final%20v3%20draft%20with%20changes%20wrt%20OAISv2%2020190425_bbh_with-DAI-responses-20190605-DG-trial-CI-mcJGG-DG.docx?dl=0
>
>
>
> I’ve responded to the points in Mark’s email below.
>
>
>
> Regards
>
>
>
> ..David
>
>
>
>
>
>
>
> *From:* MOIMS-DAI <moims-dai-bounces at mailman.ccsds.org> *On Behalf Of *Mark
> Conrad
> *Sent:* 23 August 2019 21:01
> *To:* MOIMS-Data Archive Interoperability <moims-dai at mailman.ccsds.org>
> *Subject:* Re: [Moims-dai] Notes of Skype call Tuesday 20th Aug 2019 and
> preparation for Skype call next week
>
>
>
> Hello,
>
>
>
> I have completed my review of the document with David's proposal for,
> "changing 20 (out of 216) mentions of “Content Information” to “Information
> Object” and changing 37 (out of 102) mentions of “Content Data” to “Data”."
> I have inserted comments throughout the document. As you will see, I
> strongly object to the proposed changes.  There are a number of reasons for
> my objections, including:
>
>
>
> The changes would require OAISes to keep PDI for every Data Object under
> their control.
>
> *No – as John and I point out, these are just definitions, not
> requirements.*
>
>
>
> The changes lead to (further) inconsistencies within the document.
>
> *I did not see/understand those inconsistencies, although there were a
> couple of points that may need discussion.*
>
>
>
> This is a further dilution from Content Information -> Content Data Object
> -> Data Object. An AIP must have Content Information and associated PDI for
> the Content Information - not just the CDO. PDI is not required for any
> Information Objects other than Content Information.
>
> *Yes I agree that PDI is not required for Information Objects except for
> Content Information. But the changes mean that one is not prevented from
> having PDI for other Information Objects. Most of the text focusses on
> AIPs, which have Content Information.*
>
>
>
> It would be much better and easier to state what is the reality. SIPs,
> AIPs, and DIPs have very little in common in terms of purpose or
> requirements. SIPs are used to transmit all or parts of Content Information
> and PDI from the Producer to the OAIS. DIPs are used to transmit all or
> parts of information derived from AIPs. "The exact information contents of
> the SIP and DIP and their relationship to the corresponding AIP are
> dependent on the agreements between the Archive and its Producers and
> Consumers." (Section 4.2.2.2)
>
> *As we discussed at the meeting, this would be an alternative, consistent,
> way of doing things but I personally think it is conceptually messy and
> would cause other problems. One may feel obliged to remove the common term
> “Information Package” from SIP, AIP, DIP. The use of the term “Information
> Package” would become difficult/impossible in related OAIS documents. *
>
>
> Mark Conrad
> NARA Information Services
>
> Systems Engineering Division (IT)
> The National Archives and Records Administration
> Erma Ora Byrd Conference and Learning Center
> Building 494, Room 225
> 610 State Route 956
> Rocket Center, WV  26726
>
> Phone: 304-726-7820
> Fax: 304-726-7802
> Email: mark.conrad at nara.gov
>
>
>
>
>
> On Fri, Aug 23, 2019 at 7:48 AM David Giaretta <david at giaretta.org> wrote:
>
> Discussion this week (3rd Tuesday of the month):
>
> ·       Most discussion was about the updated UML diagram sent by Steve
> Hughes just before the meeting.
>
> o   UML tools:
>
> §  JPL uses MagicDraw
>
> §  DG uses Enterprise Architect
>
> §  Felix suggest that
> https://www.eclipse.org/downloads/packages/release/2019-06/r/eclipse-modeling-toolshttps://www.eclipse.org/downloads/packages/release/2019-06/r/eclipse-modeling-tools
> <https://www.eclipse.org/downloads/packages/release/2019-06/r/eclipse-modeling-toolshttps:/www.eclipse.org/downloads/packages/release/2019-06/r/eclipse-modeling-tools>
> might be of interest. He also sent the document
> ReverseEngineeringPlugins.docx available at
> https://www.dropbox.com/s/sja7y0rzwedl40h/ReverseEngineeringPlugins.docx?dl=0
>
> ·       An issue which overlaps with the OAIS updates was the definition
> of Information Packages – currently they must have “Content Information”
> rather than the more general “Information Objects” – see mark up in
> document noted in the action below.
>
>
>
> Preparation for next Skype call on OAIS update finalization:
>
> ·       The document with combined changes wrt 2012 release of OAIS is
> available at
> https://www.dropbox.com/s/o424z4gfmoaosnc/OAIS%20final%20v3%20draft%20with%20changes%20wrt%20OAISv2%2020190425_bbh_with-DAI-responses-20190605-20190805.docx?dl=0
>
> ·       *ACTION FOR ALL BEFORE THE NEXT SKYPE CALL*: read and comment on
> additional suggested changes in
> https://www.dropbox.com/s/avi4vu6u888lz6q/OAIS%20final%20v3%20draft%20with%20changes%20wrt%20OAISv2%2020190425_bbh_with-DAI-responses-20190605-DG-trial-CI-change.docx?dl=0
> . This involved changing 20 (out of 216) mentions of “Content Information”
> to “Information Object” and changing 37 (out of 102) mentions of “Content
> Data” to “Data”.
>
>
>
> Regards
>
>
>
> ..David
>
>
>
>
>
>
>
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