Create a Data Flow Diagram (both context and level-1) based onthe following requirements. Use Visio and submit your file via thedesignated Dropbox folder.
Miss Jane’s Supermarket has a membership program and everyshopper needs to provide membership number when buying groceries.When a shopper enters the check-out counter, the cashier enters themembership number provided by the shopper into the POS system, andthen the system displays the name and contract information to theshopper. The cashier starts scanning products, and the system readsthe barcodes of the products. The product information is read bythe system based on data stored in a product file. The systemdisplays a
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