Many attempts have already been made to propose a global physical model for a Be star by compiling separate studies (see e.g. Cote & Waters 1987; Waters 1993, among others). Unfortunately, photometric studies are usually left out of these syntheses. We here combine four different kinds of observations (photometric period, rotation velocity, intrinsic linear polarisation in the visual and IR excess) to see if they contain compatible information. From this study, we try to put constraints on the geometry of the stellar disc.