Myung-Ja (MJ) Han is a Metadata Librarian and Associate Professor of Library Administration at the University of Illinois at Urbana-Champaign. Her main responsibilities consist of developing application profiles for digital collections and evaluating and enhancing cataloging and metadata work flows. Her research interests include interoperability of metadata, relationships between collection description and item-level metadata, issues on bibliographic control in the digital library environment, and semantic web and linked data.