testbed: spreadsheetsXML is an appropriate choice for thelong-term preservation ofspreadsheets. XML can be used tospecify the context, content andstructure of spreadsheets.
testbed: databasesAt present, XML is the mosteffective strategy for thedurable preservation ofdatabases. XML is highlycapable of representing thecontext, content, and structureof databases.This strategy canimplemented using a numberof different methods.
what do repositories want Conversion to preservable formats. Automatically at most once Faithfully.
preservation strategyMigration and emulation are complementarystrategies. Migration is best for offeringusable content. Emulation is best forinvoking the original experience.Migration to XML isnormalised migration,hence we coin it smart migration.
Ingredientssuitable xml formats for your datasoftware to convert legacy data to xml ingest data to xml xml to dissemination dataconnectors to your repository workflow
Data kindsData comes in kinds, defined by the typicalapplications that manipulate it.Spreadsheets, databases, richtext, images, audio, video, drawings, ...The need for these applications are thebasic reason for the threat of data losscaused by software obsolescence.
improvements for repositories• users can select format most usable to them, irrespective of producer• users can select the preservation format, in case usable formats are not supported• less uncertainties in interpretation, either by humans or by software
further improvementscombine data from heterogeneous sources• different formats (straightforward)• different data models (advanced)• different data kinds
Conversion as a service• a uniform resource • yielding uniform results• easily accessible• product of community effort • a good conversion requires a lot of intelligent work • quality is reached in an iterative manner
MIXED as Infrastructure• provides a standard for preservation formats• implements the tools to maintain the standard• accumulates the shared wisdom of data formats
when softwarevendors realizethat thereshould alwaysbean im/exportto apreservationformat,it means ........... The End of MIXED