tag:blogger.com,1999:blog-1303975371294158246.post2955077585554238160..comments2024-03-11T10:02:17.638+00:00Comments on Digital Curation Blog: iPres 2008 Foundations session and closing remarksGraham Pryorhttp://www.blogger.com/profile/12394604548989689232noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1303975371294158246.post-84191084567502295592008-10-02T17:50:00.000+01:002008-10-02T17:50:00.000+01:00For a while I though Michael might be on the road ...<I>For a while I though Michael might be on the road to a formal specification of Representation Information from OAIS, but subsequently I was less confident of this; Michael comes from a different community, and was not familiar with OAIS, so he couldn’t answer himself.<BR/></I><BR/>After some reading on the OAIS, I think I can now answer the question positively - the BSG reasoning approach may serve as a formalization of OAIS Representation Information, unless I got something substantially wrong.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1303975371294158246.post-55891877434949694212008-10-01T09:31:00.000+01:002008-10-01T09:31:00.000+01:00...the reliability requirements putforward by RLG ...<I>...the reliability requirements putforward by RLG (0.001%? where did that number come from?). </I><BR/><BR/>I think I can shed some light on this, although not as much as I would like to be able to. That figure comes from some explanatory text for one of the TRAC requirements. It isn't a figure that repositories are asked to meet - it is an example of how TRAC expects a repository to set standards for itself (in this case, relating to acceptable or anticipated levels of loss) and then be able to demonstrate why it believes it meets those self-imposed standards. My recollection is that this section started out with some members believing that no loss was acceptable; others argued that that was not attainable (and the presentations in this session do an excellent job of demonstrating the truth of that.)<BR/><BR/>But we felt that a repository, to deserve the attribute 'trusted', ought to be able to demonstrate some insight into how reliable its storage systems and curation practices were, and how they related to the requirements of its stakeholders.<BR/><BR/>The wiki we used to develop TRAC had the entire history of the argument and counter-argument that led to this (and many other decisions.) Unfortunately, when I last checked, its contents had been completely erased and replaced by something else :-( As it was password-protected, the Internet Archive can't help us here.Anonymousnoreply@blogger.com