  In this note we describe the theory of functional asynchronous networks and
one of the main results, the Modularization of Dynamics Theorem, which for a
large class of functional asynchronous networks gives a factorization of
dynamics in terms of constituent subnetworks. For these networks we can give a
complete description of the network function in terms of the function of the
events comprising the network and thereby answer a question originally raised
by Alon in the context of biological networks.
