[rfc-i] New proposal for "canonical and others"
lrosenth at adobe.com
Mon Jun 18 05:47:07 PDT 2012
>The evidence is that acid-free paper and the right kind of ink are very durable (centuries); whereas all digital storage media that I'm aware of have a lifetime >measured in decades without regular re-copying.
Which is why all archival format discussions (such as PDF/A) all take place separately from the work being done on archival media (and various other "bits").
When designing an archival format, you should ASSUME that the media, migration, etc. issues are addressed elsewhere - or you'll never get anywhere.
If it helps, here are the criteria that were set forth (by archivists!) at the beginning of the PDF/A standardization process:
A document format that
Can convey critical information
Can be rendered accurately - "consistent and predictable"
Rich metadata support
Standard schemas such as DublinCore
Document providence, version history, audit trails
Can incorporate associated "marginalia"
Notes scrawled in the margins on documents
Comments & markup
Digital Signatures for "tamper-proofing"
Additionally, they felt that it was necessary to include:
A definition of how retrieval devices (readers) will behave
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