Read the Case Study, which is in the context of a supermarket App and draw a physical data flow diagram to illustrate the system. A customer can receive promotion news from the check latest promotions process and the news are provided by the company database. A customer can build shopping list by providing Items details and the details will be stored in the shopping cart database. The warehouse database will also provide the items details required to complete the process. A customer can receive shopping list details from the view shopping list process and such details are provided by the shopping cart database. A customer can receive items details by performing the search items process. He/she must provide an Item name for searching and the item details are returned from the warehouse database after searched. Finally, a customer can receive supermarkets' physical location details by performing check locations and the details are provided by the company database.