Draw physical dfd, level 0 diagram based on logical dfd.

Shipping confirmation D1 Status Product File Product code number Status Info Item Checkpoint 3 Order Data IG SHOP CUSTOMER Scan Product Code (Manual) Send Product code, quantity, price Order Status Info Order Data Order Request Product Status message D2 3 Order Confirmation Payment Invoice 2 Generate product status Submit order details and calculate total Order Data 4 Product Feedback 5 Check and Read customer feedback D5 Customer Review History File Manage Transaction by online payment and Generate Invoice Statement Feedback Data Order Data Transaction Data 6 Sales Report Transaction Data Produce Detail Reports SELLER DATABASE D4 Transaction File Item Stock