One of VuFind®'s main goals is to be a user-friendly, intuitive search system. This page is designed to provide more detailed information on VuFind®'s usability (and how to test it, should you care to).
Doing Usability Against the Catholic Portal - This blog post describes procedures for usability testing used by CRRA against their VuFind® instance, the Catholic Portal. It also includes some findings from the first round of testing.
Usability of the VuFind® Next-Generation Online Catalog - Online comments page for an article from Information Technology and Libraries discussing VuFind® at the University of Illinois at Urbana-Champaign (free full text not available).