Digital Migration Approaches

• Two basic types of migration in response to motivators:

  • Repackaging
  • Transformation

• Each of these comes in two basic flavors, ordered by increasing risk of information loss:

  • Physical Repackaging (Replication)
    • Media replacement with no bit changes
  • Digital Repackaging
    • Some bit changes in Packaging Information
  • Reversible Transformations
    • Bit changes in Content Information are reversible by an algorithm
  • Non-reversible Transformations
    • Bit changes in Content Information are not reversible by an algorithm

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