Reinhard Feldmann

Data Curation / Digitisation /iCloud / Long-term storage

of digital data

Legaspi, Aquinas University10th to 12th April 2014

Data curation

Reinhard Feldmann

General Introduction

Tape, CD, DVD

Microfilming has been a success

Digitising the microfilms

Data curation

Reinhard Feldmann

Microfilmscanner

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Data curation

Reinhard Feldmann

New Complexity

„Born digital documents“

Migration vs. Emulation

Digital „dark ages“ (Example: U.S. Elections)

Data curation

Data curation

Reinhard Feldmann

Audio- and Videotapes

Damages

Vinegar Syndrom >

Hydrolysis of binding agent

Tape reel

External magnetic fields ?

Data curation

Data curation

Reinhard Feldmann

Audio- and Videotapes

Best Storage Conditions

Climate conditions

8° / 25% RH

Separate storage

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Data curation

Reinhard Feldmann

Criteria for digitisation

Relevant for research

Rare and precious

Preservation needs

Preserving the Past

The Wolfenbuettel Book

Reflector

45° opening angle

Preserving the Past

The Wolfenbuettel Book

Reflector

90° opening angle

Preserving the Past

Graz Book Cradle, used in

Research libraries

Preserving the Past

ScanRobot 2.0

Preserving the Past

Preserving the Past

Preserving the Past

Fileserver at the Duke August

Library

RAID-Arrays with hard discs

Data curation

Reinhard Feldmann

Longterm Storage of Digital data

How long is “longterm”?

What is “sure storage“?

What data are we saving?

“state of the art”

Financial remarks

Data curation

Reinhard Feldmann

Semantic problem I: How long is Longterm?

"five years or more" (IFLA 2006)

“Data should normally be preserved and accessible for not less than 10 years for any projects, and for projects of clinical or major social, environmental or heritage importance, the data should be retained for up to 20 years, and preferably permanently within a national collection, or as required by the funder's data policy." (Research Councils UK 2008)

"a period of time long enough for there to be concern about the impacts of changing technologies (...) on the information being held in a repository. This period extends into the indefinite future." (CCSDS 2002: 1-11)

„'Longterm' is a non specified period, while unknown technological or sociocultural changes may take place.“ (Nestor 2008)

Longterm or forever?