1 Draw an overall data flow diagram for the following applications:
1. Making auto loans.
2. A travel agency making round-trip reservations for two 10 Hawaii.
3. A systems analyst selling professional time by the hour and paying staff salaries.
4. Ordering supplies for a barber shop.
2 write the following data dictionary entries in English.
a. PURCHASE-ORDER = Line-Item
b. Line-Item = Catalog-Number + Quantity + Description ( + Size)( + Color} + Unit-Price + Total-Price
3 For the safe deposit case described in Chapter 4 and 7, the data flow diagram in Exhibit 6-1 A Customer Data Flow Diagram sets up a new customer account for a safe deposit box.
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