Abstract: The invention provides a network of devices and a set of processors which control and/or monitor these devices by executing code defining a data-model for the network. This data-model incorporates a set of logical-nodes encapsulating network function and/or network devices, and are arranged in a hierarchy for centralised control and/or monitoring. Each logical-node includes a service-module having a set of connections for service-events and can store and/or update service-data objects, with service-events and service-data objects conforming to types defined by a network standard. Each logical-node also includes an intelligence-module having connections to exchange intelligence-events with other intelligence-modules and being operable to participate in intelligence-operations distributed across multiple intelligence-modules, and may generate service-intelligence-data defining service-events for one or more service-modules.