Hi, Mark:  Many thanks for your suggestions!  They relate to parts of 
the article we haven't gotten to yet, so we'll keep them at hand as we 
continue.

All comments from the group are more than welcome.    /Stephen

On 9/18/2012 7:57 PM, Mark Evans wrote:
> Hi,
>
> Some comments on the wiki content:
>
> I would add Normalization to the set of preservation strategies. Many
> organizations are implementing a policy of specifying a small number of
> formats that they will accept and provide preservation services for, In
> order to fully enforce this policy they may have to implement
> normalization services - this is really a flavor of migration in that they
> migrate a variety of formats for a specific content type to a normalized
> format. For example they may receive a variety of image formats (jpg, gif,
> tiff, bmp etc) and migrate them all to a common form  (e.g. png) This
> strategy is normally applied during ingest, with the option to also retain
> the original.
>
> I would remove the comment about Lockheed Martin and the ERA project.
> Lockheed Martin is no longer the prime contractor and preservation
> capabilities were not implemented during their tenure.
> However it is generally accepted that neither migration or emulation on
> their own will provide a comprehensive preservation solution for all
> content types.
>
> Another thought on migration - In many cases a migration is a 1-1 process
> . i.e 1 file in and 1 file out. However there are existing cases where the
> number of resulting digital objects that are created as a result of a
> migration activity may be different from the original set.. For example
> consider the case where a web page (multiple files, html, images etc)  are
> migrated to a PDF file. This means that we really should be focused on
> preserving the "informational" content rather than the digital
> representation. i,e. the digital files are simply a representation of the
> informational content,
>
> Hope you find this input useful.
>
> Regards
> Mark
>
>
>   
>
>
> Mark Evans
> Digital Archiving Practice Manager
> Tessella
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> Dina Sokolova <[log in to unmask]>
> Sent by: The NDSA Standards working group list
> <[log in to unmask]>
> 09/18/2012 01:57 PM
> Please respond to
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> To
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> Subject
> [NDSA-STANDARDS] Status report on Digital Preservation Wikipedia article
>
>
>
>
>
>
> Hello All,
>
> We have been continuing our work on Wikipedia Digital Preservation
> article and would like to update you with the recent changes we made
> to it:
>
>      - We've replaced introductory paragraphs with Definition
> (
> http://en.wikipedia.org/w/index.php?title=Digital_preservation&pe=1&#Digital_preservation
> ) and "Challenges of digital
> preservation"
> (
> http://en.wikipedia.org/w/index.php?title=Digital_preservation&pe=1&#Challenges_of_digital_preservation
> )
>
>      - We've edited down the OAIS paragraph of "Digital preservation
> standards" section because it duplicated the referenced Wikipedia OAIS
> article:
> http://en.wikipedia.org/w/index.php?title=Digital_preservation&pe=1&#Digital_preservation_standards
>
>
>      - We've edited the related OAIS article, correcting the text of
> "The reference model" and "Requirements of the system" sections and
> updating citations and references:
> http://en.wikipedia.org//w/index.php?title=Open_Archival_Information_System&pe=1&#The_reference_model
>
>
> Any comments and suggestions are welcome.
>
> Thanks,
> Stephen & Dina
>
>

-- 
Stephen Paul Davis, Director
Digital Program Division
Columbia University Libraries
[log in to unmask] - (212) 854-8584

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