[Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Tue Sep 11 06:57:21 UTC 2018

Hello,

if possible, we would like to discuss this topic at the beginning of the meeting today. Matthias would only be available between 16:00 and 16:20.

All the best
Felix

From: MOIMS-DAI <moims-dai-bounces at mailman.ccsds.org> On Behalf Of Lindlar, Michelle
Sent: Dienstag, 11. September 2018 08:54
To: MOIMS-Data Archive Interoperability <moims-dai at mailman.ccsds.org>
Cc: David Giaretta <david at giaretta.info>
Subject: Re: [Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Dear Mark, all,

I was involved in the discussions with Eld, Matthias and Felix in drafting the OO-IO section and attended the last call when this was discussed. As I unfortunately won’t be able to attend today’s call, I want to briefly give my input this way.

The institution I work for, TIB – German National Library of Science and Technology – maintains a digital preservation system, which (or parts of which) is involved in several archives.

1.       TIB archives its own holdings in an OAIS compliant, nestor Seal (DIN 31644) certified OAIS

2.       TIB functions as a host and provider to two other large German national subject libraries (ZBW – Leibniz Information Centre of Economics, and ZBMED  - Information Centre for Life Sciences). Both maintain an OAIS which consists of the bit repository and application layer (IO from TIB’s point of view) and e.g. (functional) preservation planning done directly by ZBW or ZB MED (OO, from TIB’s point of view). As such,  some functional entities may take place in both OO and IO, but with a different focus. While ZBW / ZB MED conduct functional preservation planning themselves, TIB still needs to conduct preservation planning on the storage / bit side, i.e. in form of planned storage migration or decision regarding number of copies.

3.       TIB functions as a Digital-Preservation-as-a-Service provider to other institutions who do not want to maintain their own digital preservation infrastructure and staff. As opposed to ZBW and ZB MED, who have access to parts of TIB’s preservation infrastructure / digital preservation system, these typically small to mid-sized institutions simply prepare deposits in a pre-SIP packaging. While we define policies with them, describing what we do with the data and while they remain the owner of the data, functional entities like preservation planning are conducted within the IO on a functional and bit level.

In documenting these different processes and constellations, the Inner OAIS/ outer OAIS model has been extremely valuable. Especially when defining policies which point to different responsible parties (IO / OO) but moreover during the certification process, it has become very difficult to describe distributed digital preservation processes. During our own certification processes as well as those of our partnering institution ZBW (who is DIN 31644 certified on its own) we received many reviewer questions which could be best met via a model such as the IO-OO.

I therefore disagree with the statement that it creates confusion about what is and what isn’t an OAIS. Quite to the contrary, in distributed environments where several institutions either use a centralized system or where institutions rely on other service providers, the IO-OO model allows to adequately describe responsibilities, interactions and dependencies for different functional entities. The inclusion of the IO-OO would be much needed and welcome – not just from my instiution’s point of view but from many others I’ve spoken to (e.g., in the context of the Open Preservation Foundation).

Cheers,
ML

Michelle Lindlar
Technische Informationsbibliothek (TIB)
German National Library of Science and Technology
Digital Preservation
Welfengarten 1 B // 30167 Hannover, Germany
T +49 511 762-19826
michelle.lindlar at tib.eu<mailto:michelle.lindlar at tib.eu>
www.tib.eu<http://www.tib.eu/>

Von: MOIMS-DAI [mailto:moims-dai-bounces at mailman.ccsds.org] Im Auftrag von Mark Conrad
Gesendet: Montag, 10. September 2018 21:49
An: MOIMS-Data Archive Interoperability
Cc: David Giaretta
Betreff: Re: [Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Hi David,

I intend to be on the call tomorrow.

1. What is it useful for?

2. Creates confusion about what is and isn't an OAIS.

3. Not sure if the statement is true per se. Depending on the service being sought - for example, replication and geographic dispersal of copies of very large (petabyte to exabyte) collections - an OAIS may or may not be the best provider of the service. Even if we were to take the assertion as true, it could be stated in one sentence. Along with the statement that an OAIS could outsource some services, these two statements could replace all of Section 6.1.5 without all the confusion about what is and is not an OAIS.

Mark

On Mon, Sep 10, 2018 at 12:42 PM, David Giaretta <david at giaretta.org<mailto:david at giaretta.org>> wrote:
Hi Mark

As I understand it, Eld argues that the OO-IO is useful terminology while you think it is unnecessary. I hope you can both be on the call tomorrow.
My attitude is that the OO-IO terminology

  1.  is potentially useful
  2.  does no harm and does not affect conformance
  3.  has the benefit of enabling one to say that if an OAIS does rely on another organisation to provide a service, it is advantageous that the information the 2nd organisation needs to provide that service is preserved in the best possible way i.e. that 2nd organisation is itself an OAIS.

Of course we can argue about all those points!

..David

From: MOIMS-DAI <moims-dai-bounces at mailman.ccsds.org<mailto:moims-dai-bounces at mailman.ccsds.org>> On Behalf Of Mark Conrad
Sent: 07 September 2018 17:56
To: MOIMS-Data Archive Interoperability <moims-dai at mailman.ccsds.org<mailto:moims-dai at mailman.ccsds.org>>; David Giaretta <david at giaretta.info<mailto:david at giaretta.info>>
Subject: Re: [Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Please see the attached text with my comments. Hopefully I have commented on the correct text this time. 😀 I will also post this text as an attachment to SC 135 on the review.oais.info<http://review.oais.info> site.

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<mailto:mark.conrad at nara.gov>

On Wed, Sep 5, 2018 at 2:02 PM, Mark Conrad <mark.conrad at nara.gov<mailto:mark.conrad at nara.gov>> wrote:
Thanks, John. I will prepare comments accordingly. Thanks, Eld, for pointing out the discrepancy.

Mark

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<mailto:mark.conrad at nara.gov>

On Wed, Sep 5, 2018 at 1:43 PM, John Garrett <garrett at his.com<mailto:garrett at his.com>> wrote:
Hi,

Sorry, this seems to be my mistake.
It appears as if I did not get the original suggested update into the draft and did not get the subsequent intermediate suggestion into the draft.  Probably best at this point to take Eld’s content as the base for further comments.

Peace and joy,
-JOhn

From: MOIMS-DAI [mailto:moims-dai-bounces at mailman.ccsds.org<mailto:moims-dai-bounces at mailman.ccsds.org>] On Behalf Of Mark Conrad
Sent: Wednesday, September 5, 2018 9:07 AM
To: MOIMS-Data Archive Interoperability <moims-dai at mailman.ccsds.org<mailto:moims-dai at mailman.ccsds.org>>
Subject: Re: [Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Hi Eld,

The text I commented on is from John's Word document with the current state of the OAIS document dated 2018-08-21.

John,

Which document should I be commenting on for Section 6.1.5. - that section from your document dated 2018-08-21 or the document that Eld cites in her email message, Section 6.1.5 10th of July 2018<http://review.oais.info/attachment.cgi?id=42> (http://review.oais.info/attachment.cgi?id=42)?

Mark

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<mailto:mark.conrad at nara.gov>

On Wed, Sep 5, 2018 at 3:58 AM, Eld Zierau <elzi at kb.dk<mailto:elzi at kb.dk>> wrote:
Hi
I think there has been a misunderstanding somewhere, since the version you commented Mark is a word document from an old version.
The version discussed on 14th of August is: Section 6.1.5 10th of July 2018<http://review.oais.info/attachment.cgi?id=42> (http://review.oais.info/attachment.cgi?id=42)
It was also noted that terms like Functional Entity … was to be changed to lower case and the references in the end should be removed.
Best regards, Eld

From: MOIMS-DAI <moims-dai-bounces at mailman.ccsds.org<mailto:moims-dai-bounces at mailman.ccsds.org>> On Behalf Of Mark Conrad
Sent: Tuesday, September 4, 2018 5:29 PM
To: MOIMS-Data Archive Ingestion <moims-dai at mailman.ccsds.org<mailto:moims-dai at mailman.ccsds.org>>
Subject: [Moims-dai] Marked up version of OAIS Section 6.1.5 - OO-IO Text

Please see the attached text with my comments. I have also posted this text as an attachment to SC 135 on the review.oais.info<http://review.oais.info> site.

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<mailto:mark.conrad at nara.gov>

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