ABSTRACT:This paper reports on the effort we made in adapting and opening a specialist tool, focused on illumination and designed purposely for scholars and researchers, in order to be suitable also for the general public. We describe the ongoing process we are conducting: the adaptation and the improvement of the IPSA digital archive using the results we collected after several sessions of user interviews, following suggestions of both scholars and simple users. We discuss user studies dynamics, that we consider as a loopinteraction, and the consequences that they entail upon the system design.