Metadata in Long-Term Digital

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1、MetadatainLong-TermDigitalPreservationGrzegorzPłoszajskiAbstractMetadatahasbeenusedtodescribedigitaldataforseveralyears.Firstmetadatastandardswerecreatedinthenineties.ParticularlyimportantprovedtobeDublinCoredesignedforthedescriptionofweb-basedresources(1995).AtthesametimeExifstand

2、ardwascreated,determiningmainlytechnicalmetadatausedtodescribeparametersofdigitalimagesandinformationonequipmentused.Sincethattimevariousothertypesofmetadatahavebeencreated,e.g.rightsmetadata,prove-nance,structural,andmanydomain-orientedstandards.Long-termdigitalarchivesusuallypres

3、erveallmetadatatransferredtothemwithcorrespondingdigitalobjectsandoftenuseasubsetofobtainedmetadatatomanagearchiveassets.Theyalsocre-atepreservationmetadata,whichdescribeprocessesandpreservationactionsappliedtodigitalobjectsinthearchives.Inthischapterbasicinformationaboutmetadatain

4、long-termdigitalarchivesisgiven.1Introduction1.1DigitalPreservationThegoalofdigitalpreservationistokeepdigitalmaterialsaccessibleandusableforlongperiodsoftime.Digitalinformationisfragile.Itcanbelostbecauseofmediadegradation.Anotherproblemistechnologicalobsolescencecausedbyintroduci

5、ngnewsoftwareandnewtechnologies,whichsupersedeolder.Theolderfalloutofuse.Digitalpreservationmustbeperformedactively.Preservationactivitiescanbeappliedtostoreddigitalinformationininstitutionalrepositories,digitallibrariesandarchives;hereinafterreferredtocollectivelyasdigitalarchives

6、.Archivesapplysuchstrategiesasdataredundancy,migrationandemulation.Dataredundancy(makingseveralcopiesofdigitalobjects)maybehelpfulinshort-term.MigrationcanbedonetonewformatsofÞlesortonewmedia;itsolvestosomeextentproblemG.Płoszajski(B)InstituteofControlandComputationEngineering,Wars

7、awUniversityofTechnology,Warsaw,Polande-mail:G.Ploszajski@ia.pw.edu.pl©SpringerInternationalPublishingAG201715T.Traczyketal.(eds.),DigitalPreservation:PuttingIttoWork,StudiesinComputationalIntelligence700,DOI10.1007/978-3-319-51801-5_216G.Płoszajskioftechnologicalobsolescence.Migra

8、tionisaddressedtolong-term