Collaborative Editing of DDI Metadata: The Latest from the CED2AR Project Perry, Benjamin; Kambhampaty, Venkata; Brumsted, Kyle; Vilhuber, Lars; Block, William Benjamin Perry's presentation on "Collaborative Editing and Versioning of DDI Metadata: The Latest from Cornell's NCRN CED²AR Software" at the 6th Annual European DDI User Conference in London, 12/02/2014.