From the study of orbits and models of galaxies in recent years, it has become clear that Jeans' theorem is not adequate for building self-consistent models of real galaxies. The non-classical integrals play an important role in the dynamics of the system and their
non-global nátuře must be taken into consideration.
This work is about a new method for constructing self-consistent models of galaxies, where the distribution function is a function of the actions and the stochastic orbits are properly taken into account. It has been applied to the čase of constructing a
self-consistent model of a non-rotating bar, and the way by which this method can be used to construct any sort of disk model is discussed.