Start Level 1 Node: Settings for Global ATPSettings for Global ATPEnd Level 1 Node: Settings for Global ATP
   Start Level 2 Node: Maintaining Global SettingsMaintaining Global SettingsEnd Level 2 Node: Maintaining Global Settings
      Start Level 3 Node: Buckets for ATP Time SeriesBuckets for ATP Time SeriesEnd Level 3 Node: Buckets for ATP Time Series
         Start Level 4 Node: Valuation of Receipts and Issues in BucketsValuation of Receipts and Issues in BucketsEnd Level 4 Node: Valuation of Receipts and Issues in Buckets
   Start Level 2 Node: Maintain Check ModeMaintain Check ModeEnd Level 2 Node: Maintain Check Mode