Systems architecting would of course not exist without the right key people, i.e. systems architects, to support the architectural process! The systems architect shall indeed fundamentally be the core responsible of the systems integration issues. He/she shall thus ensure that the interfaces of the subsystems of the target system under design are reasonably robust for the purpose of the system development project, or in other terms that they will not be questioned (or as little as possible) by the technical managers in charge of the different subsystems...