  Complex dynamical networks consisting of many components that interact and
produce each other are difficult to understand, especially, when new components
may appear. In this paper we outline a theory to deal with such systems. The
theory consists of two parts. The first part introduces the concept of a
chemical organization as a closed and mass-maintaining set of components. This
concept allows to map a complex (reaction) network to the set of organizations,
providing a new view on the system's structure. The second part connects
dynamics with the set of organizations, which allows to map a movement of the
system in state space to a movement in the set of organizations.
