For some years now, the network operator industry has been going through an evolutionary period of major technology developments with the creation of Cloud technologies, Software-defined Networking (SDN), Network Functions Visualisation (NFV), Big Data and Next Generation Operations Support Systems (Next Generation OSS). These key innovative technologies target at reducing complexity and controlling service delivery for the network operator, and aim to bringing greater flexibility, agility and simplicity into the network operator environments. The primary focus of these technology...