2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43058I review the status of the comparisons between a few measurements at hadronic colliders and perturbative QCD predictions, which emphasize the need for improving the current computations. Such improvements will be mandatory for a satisfactory understanding of high-energy collisions at the LHC10 pages Latex; 3 figures included. Talk given at the Workshop on ATLAS and CMS physics, Pisa, 10-11 June 2003High Energy Physics - Phenomenologytext