re "born digital" assets, we at the ROM have  *lot* of digital images
from fieldwork. The policy we have developed is that field images are
selected by the field project director, and catalogued by them or their
people - essentially if they catalogue it, we will archive it - and
eventually make it available on the web.


_____________________________________________
Dr. Robert B. J. Mason (E-mail: robm at rom.on.ca; fax (416) 586-5877)
Dept of World Cultures, Royal Ontario Museum, 100 Queen's Park,
Toronto, Ontario, M5S 2C6, CANADA
Associate Professor, Near and Middle Eastern Civilizations, University
of Toronto, 4 Bancroft Avenue, Toronto, Ontario, M5S 1C1, CANADA
web: http://www.utoronto.ca/nmc/mason/mason.html

>>> "Louise Renaud" <Louise.Renaud at civilisations.ca> 1/8/2008 6:34 PM
>>>
When dealing with scanned images, I find quite inspiring the new
approach taken by RLG Programs and OCLC about Quantity vs Quality &
Access vs Preservation. 

However, working for an Institution where the photo collection is also
comprised of an overwhelming quantity of photos taken during Museum
events or field work record documentation, I would be interested to know
how others are dealing with the triage of any huge incoming quantity of
unique "born digital" assets.  

In such case, one could say that the statement Quantity vs Quality
morphs into Quantity vs Preservation.

Currently the Museum, through initial review, secures Copyright
ownership - keeping only appropriate images. The Museum also deletes
poor quality photos and assesses the importance of the deposit itself
ensuring that it is in accordance with its mandate. These actions reduce
the quantity per se but the number of individual photos can still be
quite significant.  

Should other institutions be dealing with similar challenges and if
some triage principles/rules could be shared, this would help us
greatly. 
Thank you. 

Louise Renaud
Manager, photos and copyright
Library, Archives and Documentation Services (LADS)
Canadian Museum of Civilization
100, rue Laurier Street, Gatineau, QC  K1A 0M8
T?l: 819-776-8237  fax: 819-776-8491
 
-----Original Message-----
From: mcn-l-bounces at mcn.edu [mailto:[email protected]] On Behalf Of
Nik Honeysett
Sent: 8 janvier 2008 16:40
To: Museum Computer Network Listserv
Subject: Re: [MCN-L] Archive materials - image sizes?

Bravo to Sam (the man with the longest title in Museum Technology) for
questioning time honored advice. (Hmm... Time honored?). There are
other
areas where this thinking is being applied very productively, for
example in software and website development.
 
I know this topic has come up before, but I'm concerned by the "do it
once, burn to DVD, never have to do it again" philosophy. Life
expectancy for this media is not in the "never" range. If you are on a
digitization initiative and buying large quantities of low quality
media
you should be wary of the life expectancy of your archive. You may
_have_ to rescan or at least transfer to different media stock. In
that
regard a more appropriate resolution based on your institution's
short-
to mid- term needs (5-10 years?) may be appropriate.
 
Storage is cheap, but this compounds the problem. Bigger, faster,
cheaper means that you put more of your digital eggs in one media
basket. If one out of 10 DVDs fail, you loose 100 tiffs, if one out 10
HD-DVDs fail, you loose 1,000 tiffs.
 
-nik

>>> "Waibel,Guenter" <waibelg at oclc.org> 1/8/2008 9:37 AM >>>
Hi Perian,

A lot of the responses you've received so far have advised you to go
for higher resolution. I belief that this advice may make sense in
certain circumstances (for example, original art, fragile materials or
small high-value collections), but the situation you're describing is
different ("the documents aren't "precious"). I'd encourage you to
weigh
the intended use of the material in making your decision. The advice
you
received was accurate if your main goal is preservation, but that's
not
what your post led me to believe. If your main goal is increased
access
to as many items in your collection as fast as possible, I think a
different approach may be more suitable.

For those of you who will be surprised to hear me say this... Sam
Quigley gave an inspiring talk at an SAA preconference RLG Programs
organized in Chicago '07, during which he began to question the
time-honored advice of "do it once for all time," and argued that a
model of rapid digitization for access may be just as valid to make
museum collections available as quickly as possible. It made me (and
some of my colleagues) refine our positions when it comes to
digitization. Since I don't want to put words in Sam's mouth any more
than I've already done (I suspect he's reading this!), you can listen
to
his talk at http://www.oclc.org/programs/events/2007-08-29.htm.

Some of my colleagues who were involved in organizing this event put
together a provocative essay called "Shifting Gears," summarizing some
of the forward-looking ideas discussed during the event Sam spoke at -
the end result is very much aimed at the archival community, but worth
considering in this context as well. You'll find it at
http://www.oclc.org/programs/publications/reports/2007-02.pdf. Here's
a pertinent excerpt:

"Many of our digital initiatives have stressed the importance of
preservation, leaving access as an afterthought (the idea being if you
capture preservation-quality; you can always derive an access copy).
In
reality, due to the very special nature of these often unique
materials,
we will always preserve the originals to the best of our ability. In
light of recent programs for the mass digitization of books, if
special
collections and their funding continue to be marginalized, our
administrations may not keep us around to attend to the originals.

In the past, we've soothed our doubts by repeating the mantra, "we'll
only get one chance to do it, so it's got to be done right."
Experience
has shown that that is not in fact the case. Often we do go back when
the technology improves or when we better understand our users' needs.
We need to put on our helmets now and go for the biggest bang for the
buck in terms of access."

Cheers,
G?nter

***

G?nter Waibel
RLG Programs, OCLC
voice: +1-650-287-2144
G?nter blogs at ... http://www.hangingtogether.org 




-----Original Message-----
From: mcn-l-bounces at mcn.edu [mailto:[email protected]] On Behalf
Of
Perian Sully
Sent: Tuesday, January 08, 2008 8:24 AM
To: Museum Computer Network Listserv
Subject: [MCN-L] Archive materials - image sizes?

Hi all:

We're currently having a debate about the appropriate scanned image
sizes for archival documents. Our scanner doesn't scan into RAW, so
we're batting back and forth whether to save the master TIFFs as 600
or
300 dpi. 

On the 300 side:
1) many of our archival materials were already scanned at 300 dpi
(that
being the original size I designated, but we've a long way to go yet) 
2) the majority of our reproduction requests are for 300 dpi JPG
3) storage space concerns
4) archive materials are mostly documents and don't necessarily need
600
dpi treatment
5) since the documents aren't "precious" like the 3D materials and
photographs, we can go back and rescan if we really need a 600 dpi JPG
(ie. handling concerns aren't as great)

On the 600 side:
1) scan once and be done with it
2) we do sometimes receive 600 dpi JPG requests
3) storage is cheap
4) make sure the master TIFF is as high as quality as possible, since
we
don't have RAW to fall back upon

We're also thinking about scanning the documents at 300 dpi, and
photographs and 3D materials in 600.

What do other institutions do? Any best practices we should fall back
upon here?

Thanks in advance!

Perian Sully
Collection Information and New Media Coordinator
Judah L. Magnes Museum
2911 Russell St.
Berkeley, CA 94705
510-549-6950 x 335
http://www.magnes.org 
Contributor, http://www.musematic.org 

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