The present document defines the service requirements and high-level architecture for SuM@ including Converged Management of fixed and mobile networks. SuM is expected evolve in stages over several releases of 3GPP specifications. The present document provides additional supporting material@ which whilst not within the scope of this release@ provides an insight towards the future evolution. This is in order that initial work may be done with an appreciation of the wider context expected in future releases of 3GPP specifications. SuM for 3GPP is primarily concerned with the ability to define subscription profiles and associate the profile with subscribers@ users and services that are authorized by agreements. The subscription profile may be used in the process of configuring various network resources (access and core) to make the service a reality for the user. The management capabilities extend to the creation@ modification@ synchronization@ and re application of subscription profiles. The present document is oriented towards a standardized interface into the Home Subscriber Server (HSS) in order that services can be provisioned and maintained. The present document includes information applicable to Network Operators@ content providers@ and terminal and network manufacturers. The present document contains the core requirements for SuM@ which are sufficient to provide management services. The method by which applications subscribe to OSA is not within the scope of the present document.