Information Service (IS): An IRP Information Service describes the information related to the entities (either network resources or support objects) to be managed and the way that the information may be managed for a certain functional area (e.g., the Alarm IRP Information Service in the fault management area). Information Services are defined for all IRPs and provides the technology specification of an IRP. Solution Set (SS): contains a mapping of the IRP Information Service (IS) to one of several technologies. An IS can be mapped to several different Solution Sets. Different technology selections may be made for different IRP Information Services. The functionality and information specified in a Solution Set is constrained by the functionality and information specified in the associated Information Service. Interface IRP: 3GPP publishes a number of IRP specifications each of which is related to a set of operations and notifications for a specific telecom management domain such as alarm management, configuration management, and SO on. Interface IRPs also contain definitions of Support IOCs (infor- mation object class). This term represents all such specifications. An example of an Interface IRP is the Basic CM IRP (the set of TSs 32.601, 32.602, 32.603, etc.). Next Generation Mobile Communications Ecosystem OSF for Network Management and Service Management Itf-N OSF Core Network Basic Entities Domain Core Network Common CN PS (GPRS) Itf-P2P Access NE Management Service Equipment Domain Domain Domain Network Specific Domain Domain Entities Management Figure 8.26 Overview of 3GPP telecom management domains and interfaces. Reproduced with permission from 2007 3GPP [35] Figure 8.26 gives an overview of management domains and the interfaces in 3GPP. OSF refers to Operations Support Functions, CN to Core Network, PS to Packet Switched, GPRS to General Packet Radio Service and NE to Network Element. It introduces two interfaces namely Itf-N and Itf-P2P. For each Telecom Management interface that will be standardized by