designed models, including resources, ser- vices, and products, the relationships of the asset items, and their references to the process and policy repositories 2. Process repository is the data store of designed processes Building the Network of the Future 3. Policy repository is the data store of designed policies 4. Resource images is the data store that contains the resource executables 5. Service images is the data store that contains the executables for the service 6. Certification repository is the data store of testing artifacts 7.3.3 CERTIFICATION STUDIO SDC provides a certification studio with expanded use of automated simulation and test tools along with access to a shared, virtualized testing sandbox. The model-driven approach to testing enables a reduction in overall deployment cost, complexity, and cycle time. The studio provides the following capabilities: 1. Allows reuse and reallocation of hardware resources as needed for testing rather than dedi- cated laboratory environments 2. Supports test environment instantiation of various sizes when needed using a mix of production and test components, using a standardized and automated operations framework 3. Provides expanded use of automated test tools beginning in design through deployment for simulation/modeling behaviors, conflict and error identification, test planning and execu- tion, and results/certification 7.3.4 DISTRIBUTION STUDIO The models are stored in an internal technology independent format, which provides users greater flexibility in selecting the execution engines that consume the data. In a model-driven, software- based architecture, controlling the distribution of model data and software executables is critical. This studio provides a flexible, auditable mechanism to format, translate when needed, and distrib- ute the models to the various network cloud components. Validated models are distributed from the design time environment to a runtime repository. The runtime distribution component supports two modes of access: (1) models ca