e functionality rich legacy NMS solutions to SOA, addressing the capabilities of NGNM. Architects need to look at SID as the ideal abstract common model that provides an excellent foundation for OSS/BSS integration. In addition to Next Generation Network Management (NGNM) using SID business and system views to provide well-defined contracts of the existing system, SID can also be used for mapping application inter- faces and attributes for reuse. Applications that can enable content-based transformation logic to be captured on the SID without writing low-level code and capture validation rules on the SID are already available in the market. Enterprise common information model (CIM) and telecom shared information and data (SID) mapping is an area TMF and DMTF are jointly working on based on the convergence in management of tele- com and enterprise space. COTS integration is one of the major drivers in developing meta-models by NGOSS and architects needs to play a key role in promoting the use of meta-models. In a multivendor heterogeneous network environ- ment, integration is the key word. From an NMS perspective, this would involve adding management functionality supplied by multivendors for various network elements to an NMS. Having a holistic telecom view and designing systems that can be easily integrated would involve following common models at various stages of development. NGOSS defines a set a meta-models that would ease integration. 3. Implementation provider dealing with implementation block in NGNM The main goal of the implementers is to churn out NGOSS solutions to meet current market requirements in a timely manner. The activities should target deliverables that are ready to use and can be plugged into the telecom management solutions currently available. An example of this would be an MTOSI adapter that will convert messages from legacy calls in the solution to interactions that are compliant with MTOSI. Building the technology specific implantation over the technology neu- tral architecture of TMF a