Data Flow diagram - Level 2 DFD

PurchaseProductspurchasedInventory listUpdated buyeraccount infoUpdatedpurchasing infoDailybuyers'historyDailypurchasingtrendsMarketingreportsBUYERObtain purchasingdataUpdatebuyer's account historyUpdate purchasing trends databaseGerneratedailymarketingreportsMarketingTEAMPurchasingTrendsDatabaseAccountHistoryDatabase
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