2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8515Confronting the predictions of numerical calculations with observations is an important tool to progress with our understanding of the mechanism triggering the outbursts of dwarf novae and soft X-ray transients. Simultaneous multi-wavelength observations are of particular importance in this process as they contain information about the chronology of the outbursts as e.g. the famous UV-delay observed in dwarf novae. We review key-predictions of the disc instability model (DIM) and confront them with the corresponding observations.6 pages, 3 figures, to appear in The astrophysics of cataclysmic variables and related objects, ASP Conf. Ser., eds. J.-M. Hameury and J.-P. LasotaAstrophysicstext