International audienceWe propose to define the activity of graphical rendering design, which aims at maximizing the display quality of the image components. Overlooked in most design methods, this activity is essential for the success of a design project and for the validation of interfaces of critical systems. As such, it is pluri-disciplinary: graphical design (design, infovis), evaluation (experimental psychology), influence from hardware and software technologies (computer science), design methodology (design rationale, maintenance, computer science). In this paper, we detail the activity of graphical rendering design of HMI, by identifying its main dimensions. We also present a tool that instruments it: we describe its main functionalities, as well as the methods allowing to achieve the activity. Finally, we discuss about the benefits of inter disciplinary instrumentation during the design process
