Designing for expert users on a large non-standard display

Testing new interface concepts for expert users on large and immobile display prototypes complicates the application of a user-centered design approach. In this paper we report on our experience with developing an emergency management system on a large curved display using an iterative user-centered design process. Involving the expert users was a major challenge due to the immobility of our display prototype. We present and discuss different prototyping and evaluation strategies and assess their suitability for such a scenario.