The library portal Primo is a so-called discovery and delivery system that is used in libraries across the world.
Primo combines the resources listed in the libraries' holdings database with datasets relating to externally hosted sources provided by institutional repositories and with the mega-index hosted by Ex Libris that contains metadata and full texts provided by various publishers and aggregators.
Libaries can modify Primo to a certain degree to suit their particular requirements.
The developer, Ex Libris, has made the new Primo interface more intuitive by concentrating all information concerning one publication on a single page. The new interface is barrier-free and adapts to mobile devices. Freie Universität Berlin will be using the new interface as of spring 2018.