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Longitudinal System - The advent and arrival of the U.S. Department of Education�s Education¿s Education Data Exchange Network (EDEN) System has challenged the way state education agencies conduct business. Despite voluntary participation as a proof of concept site for EDEN precursors (e.g., the Integrated Performance Benchmarking System), many SEAs (State Education Agencies), are finding that this consolidated reporting requires that data be integrated from many different stand-alone collection repositories or data stores operated by schools and institutions. A Longitudinal Data system integrates data by means of a single data warehouse so that the longitudinal data meta data will meet all submission expectations and requirements detailed in the Education Data Exchange Network (EDEN) Workbook.