The following are two diagrams

Q1: Please compare the logical and physical DFDs according to the following aspects:

(1) What the model depicts (for example, how business operation, or how the system will be implemented)

(2) Types of data stores in the diagrams

Q2: What contents of the physical DFD are not found in the logical DFD? (name at least three)

Logical Data Flow Diagram Prices Items to Prices tem ID Compute Amount to be Paid Settle Look InItems and Prices Prices Cost of Order and Issue Physical Data Flow Diagram Temporary Trans. File UPC Price File D2 Customer Customer tems and UPC CodeItem Description Items Brought to Checkout Items, Prices and Subtotals Cash, Check or Debit CardCash Register and Prices Receipt Calcu lated Look Up tem Codes and PricesC Amount to Be Paid Collect Money Compute Total Cost tems OverUPC Bar Code Code and Price in File and Give (Manual) (Manual) Logical Data Flow Diagram Prices Items to Prices tem ID Compute Amount to be Paid Settle Look InItems and Prices Prices Cost of Order and Issue Physical Data Flow Diagram Temporary Trans. File UPC Price File D2 Customer Customer tems and UPC CodeItem Description Items Brought to Checkout Items, Prices and Subtotals Cash, Check or Debit CardCash Register and Prices Receipt Calcu lated Look Up tem Codes and PricesC Amount to Be Paid Collect Money Compute Total Cost tems OverUPC Bar Code Code and Price in File and Give (Manual) (Manual)