ned. Then a few approaches for adopting the framework that utilizes the functionality rich legacy NMS are detailed. 34.2 Introduction With rapid improvements happening in the architecture of core and access net- works it is quite clear that legacy NMS (network management system) with proprietary interfaces and protocols will become obsolete, as the cost and effort required in maintaining such systems is very huge and those are not scalable with the requirements. It is difficult to integrate other components to these systems. The solution toward developing an NMS solution for next generation network is to have Report: NGNM Framework and Adoption Strategy a scalable NMS suitable for handling legacy and next generation networks with special customizations added specifically to the different networks. This report presents an NGNM framework incorporating the most popu- lar standards currently available in NMS domain. The discussion on the sug- gested NGNM framework is organized into four main phases. The first phase details the framework for developing generic network management solution that is based on SOA (service oriented architecture). To the framework, generic func- tionalities are added based on open standards and interface definitions. Once the architecture and design details of a scalable generic network management solution is ready, the report details the second phase of adding the function- alities of NGNM (next generation network management) as defined by the latest standards on next generation network management. The architecture for building these functionalities is also discussed with the example in the use of EDA (event driven architecture) to satisfy the requirement of minimal manual intervention. At the end of phase two, a next generation network management solution is ready. The next two phases involve specialization of the solution for a specific net- work. IP multimedia subsystem (IMS) is considered as an example network in this report. Some of the NMS functionalities specific for IMS are discusse