Start Level 1 Node: Product Interchangeability in SPPProduct Interchangeability in SPPEnd Level 1 Node: Product Interchangeability in SPP
   Start Level 2 Node: SupersessionSupersessionEnd Level 2 Node: Supersession
      Start Level 3 Node: Modeling of Replacement StrategiesModeling of Replacement StrategiesEnd Level 3 Node: Modeling of Replacement Strategies
      Start Level 3 Node: Modeling of Supersession ChainsModeling of Supersession ChainsEnd Level 3 Node: Modeling of Supersession Chains
      Start Level 3 Node: Supersession Settings in SPPSupersession Settings in SPPEnd Level 3 Node: Supersession Settings in SPP
      Start Level 3 Node: Definition of the Discontinuation Period Start DateDefinition of the Discontinuation Period Start DateEnd Level 3 Node: Definition of the Discontinuation Period Start Date
      Start Level 3 Node: Determination of the Stock Exhaustion DateDetermination of the Stock Exhaustion DateEnd Level 3 Node: Determination of the Stock Exhaustion Date
      Start Level 3 Node: Determination of the Successor Product Planning DateDetermination of the Successor Product Planning DateEnd Level 3 Node: Determination of the Successor Product Planning Date
      Start Level 3 Node: Determination of the Stock Exhaustion Warning DateDetermination of the Stock Exhaustion Warning DateEnd Level 3 Node: Determination of the Stock Exhaustion Warning Date
      Start Level 3 Node: Monitoring of DestockingMonitoring of DestockingEnd Level 3 Node: Monitoring of Destocking
      Start Level 3 Node: Updating Supersession ObsolescenceUpdating Supersession ObsolescenceEnd Level 3 Node: Updating Supersession Obsolescence
   Start Level 2 Node: Form-Fit-Function ClassesForm-Fit-Function ClassesEnd Level 2 Node: Form-Fit-Function Classes
      Start Level 3 Node: Consolidating Demands and Generating Substitution OrdersConsolidating Demands and Generating Substitution OrdersEnd Level 3 Node: Consolidating Demands and Generating Substitution Orders
      Start Level 3 Node: Inventory Balancing for the Products of an FFF SubsetInventory Balancing for the Products of an FFF SubsetEnd Level 3 Node: Inventory Balancing for the Products of an FFF Subset