“The difference is that the former focuses on the functions and their composition while the latter concentrates on the movement of data through a network (more precisely a directed acyclic graph) of connected computations. Every node of this network is a singleassignment variable that is calculated once all inputs of its defining expressions have been determined. Therefore the result of injecting data into the processing network is always fully deterministic even though all computations within it conceptually run in parallel.”
What does it means ?
