6. Outline
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Research Data
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Research Data Management
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OAIS (Reference model for“TrustedDigital Archive”)
7. Research Data
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Meaningvariesforeachscientificdiscipline
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Varietyof forms
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Varietyof formats
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Varietyof collectionmethods
8. Threatstodigital encodedinformation
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Bit rot
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Changes in hardware andsoftware
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Lossof usabilityas the tacitknowledgeis lost
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Legal rightsexpireor change
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Objectsmaybealtered
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Loss
12. Research Data Management
Goal: Addingvalueandmaintainingaccess toresearch data over the course of itsscholarlylifecycle.
Componentsof a Research Data Management Plan:
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Descriptionof the data tobecollected/ created(i.e. content, type, format, volume…)
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Applicablestandards/ methodologiesfordata collection& management;
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EthicsandIntellectualProperty
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Plansfordata sharingand(open) access
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Strategyforlong-term preservation
14. OAISFramework forLong Term PreservationStrategies
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ISO 14721: 2012
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OAIS = Archivethatacceptedresponsibilitytopreserveinformation andmake itavailablefora DesignatedCommunity
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Open = Developedin open forums
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Framework fordescribingandcomparigarchitectures
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Expandsconsensus on elementsandprocessesforLT preservationandaccess
15.
16.
17.
18.
19. DesignatedCommunity
An
identifiedgroupof potentialConsumerswhoshouldbeabletounderstanda particularset of information. The DesignatedCommunity maybecomposedof multiple user communities. A DesignatedCommunity is definedbythe Archiveandthisdefinitionmaychange over time.
20. RepresentationInformation
The information thatmapsa Data Object intomore meaningfulconcepts. An exampleof RepresentationInformation fora bit sequencewhichis a FITS file mightconsistof the FITS standard whichdefinesthe format plus a dictionarywhichdefinesthe meaningin the file of keywordswhichare notpart of the standard.
Anotherexampleis JPEG software whichis usedtorendera JPEG file; renderingthe JPEG file as bits is notverymeaningfultohumansbut the software, whichembodiesanunderstandingof the JPEG standard, mapsthe bits intopixels whichcanthenberenderedas animage forhuman viewing.
21. Example
Digital object: Digitized Mediaeval charter
Designated community: historians (mediaevalists)
Representation information:
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Digital image in PDF -> JPEG standard ; JPEG software
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Transcription in PDF -> PDF standard ; PDF viewer
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Content in Latin -> English –Latin Dictionary
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Annotations in XML -> ASCII Standard
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….
22. Hands on
Take a digital object as anexample
Thisobject has tobepreserved
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First givea descriptionof the digital object
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Describethe DesignatedCommunity (whichassumptionsdo youmake?)
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WhichRepresentationInformation is requiredin order forthe DesignatedCommunity tobeableto understandthe digital object?
