DigitalPreservationEurope

digital oais repository preservation identification persisten library long-term curation europe metadata drambora audit dpe wepreserve conference 3rd annual 2008 nice training planning longterm caspar repositories nestor premis tool platter planets documents rights access introduction information policies strategies prestospace shaman context semantic migration obsolescence fragility media hofman hans preparation process models holders content services low-risk formats archives object metadat plato electronic material dcc