  QCD amplitudes are one of the most important ingredients for the
understanding of the early universe. In this work we present how the knowledge
of the asymptotic states can be used to calculate the scattering amplitude of
the underline QCD events at high energy. To do so, we show how the
understanding of the soft factorization and the soft structure of amplitudes
can provide us all the necessary information to fix the kinematics of
amplitudes using inverse soft limit techniques.
