  A solution of the CCFM equation for a description of both the structure
function $F_2$ and the cross section of forward jet production as measured by
the HERA experiments is obtained on the basis of the parton level Monte Carlo
program SMALLX. The treatment of the non - Sudakov form factor and the so -
called "consistency constraint" are discussed. Following this a backward
evolution scheme according to CCFM is developed which then is used to construct
an efficient hadron level Monte Carlo program CASCADE. The results from the
forward evolution and the backward evolution Monte Carlos are compared and
found to be consistent.
