  Experiments at CEBAF will scan the intermediate-energy region of the QCD
dynamics for the nucleon form factors and for Compton Scattering. These
experiments will definitely clarify the role of resummed perturbation theory
and of quark-hadron duality (QCD sum rules) in this regime. With this
perspective in mind, we review the factorization theorem of perturbative QCD
for exclusive processes at intermediate energy scales, which embodies the
transverse degrees of freedom of a parton and the Sudakov resummation of the
corresponding large logarithms. We concentrate on the pion and proton
electromagnetic form factors and on pion Compton scattering. New ingredients,
such as the evolution of the pion wave function and the complete two-loop
expression of the Sudakov factor, are included. The sensitivity of our
predictions to the infrared cutoff for the Sudakov evolution is discussed. We
also elaborate on QCD sum rule methods for Compton Scattering, which provide an
alternative description of this process. We show that, by comparing the local
duality analysis to resummed perturbation theory, it is possible to describe
the transition of exclusive processes to perturbative QCD.
