Start Level 1 Node: Service Parts Planning (SPP)Service Parts Planning (SPP)End Level 1 Node: Service Parts Planning (SPP)
   Start Level 2 Node: Using SAP GUI or SAP NetWeaver Business ClientUsing SAP GUI or SAP NetWeaver Business ClientEnd Level 2 Node: Using SAP GUI or SAP NetWeaver Business Client
   Start Level 2 Node: Master Data and General Functions for SPPMaster Data and General Functions for SPPEnd Level 2 Node: Master Data and General Functions for SPP
   Start Level 2 Node: Generating the Demand HistoryGenerating the Demand HistoryEnd Level 2 Node: Generating the Demand History
   Start Level 2 Node: ForecastingForecastingEnd Level 2 Node: Forecasting
   Start Level 2 Node: Inventory PlanningInventory PlanningEnd Level 2 Node: Inventory Planning
   Start Level 2 Node: Distribution Requirements Planning (DRP)Distribution Requirements Planning (DRP)End Level 2 Node: Distribution Requirements Planning (DRP)
   Start Level 2 Node: DeploymentDeploymentEnd Level 2 Node: Deployment
   Start Level 2 Node: Inventory BalancingInventory BalancingEnd Level 2 Node: Inventory Balancing
   Start Level 2 Node: Surplus and Obsolescence PlanningSurplus and Obsolescence PlanningEnd Level 2 Node: Surplus and Obsolescence Planning
   Start Level 2 Node: Analysis, Monitoring, and Reporting for Service Parts PlanningAnalysis, Monitoring, and Reporting for Service Parts PlanningEnd Level 2 Node: Analysis, Monitoring, and Reporting for Service Parts Planning
   Start Level 2 Node: Simulation in Service Parts PlanningSimulation in Service Parts PlanningEnd Level 2 Node: Simulation in Service Parts Planning
   Start Level 2 Node: OEM-Managed InventoryOEM-Managed InventoryEnd Level 2 Node: OEM-Managed Inventory