We review the main features of the recently presented method for the evaluation of one-loop amplitudes of arbitrary scattering processes, in which the reduction to scalar integrals is performed at the integrand level. The coefficients of the scalar integrals are extracted by means of simple algebraic equations constructed by numerically evaluating the numerator of the integrand for specific choices of the integration momentum. The method is very well suited for an automatized and efficient implementation.

PACS numbers: 11.15.Bt, 12.38.Bx