Indiana University Bloomington’s digital library collections are moving repository versions from Fedora 3 to Fedora 4. This move means switching from using XML files for descriptive, technical, and structural metadata to using RDF statements defining those same descriptive, technical, and structural metadata properties. This talk will cover the analysis work so far to understand our collection models in Fedora 3 and identify patterns we might use for this metadata migration. Additionally, migration work to Fedora 4 is occurring for systems that have been external to the Fedora repository and those results will also inform metadata migration planning from Fedora 3 to Fedora 4. Join us for a bird’s eye view of migration in action!