CDI - The Central Discovery Index
The Central Discovery Index (CDI) is a comprehensive, cloud-based index to online resources, maintained by Ex Libris. It includes journal article- and book chapter-level metadata, as well as title-level records. It is searched in a your institution's Primo when the search scope is set to "All" or "Articles and more"; records are returned for items that the system matches with available inventory in your Institution Zone or Network Zone (unless the search is "expanded" to include items not in your institution). Follow this link to Ex Libris site for their full CDI documentation.