  The N = 4 superfield phase space coordinates are given in the harmonic
superspace. The expressions of the N = 4 classical equations of motion are
determined in terms of the spinorial and harmonic supercharges. Furthermore,
the N = 4 supersymmetric actions are obtained by means of the fermionic and
harmonic functionals. On the other hand, the Hamiltonian quantization is
studied by performing the N = 4 supersymmetric action in harmonic subspace in
terms of analytic N = 4 superfield phase space coordinates.
