Perfect Pizza wants to install a system to record orders for pizza and chicken wings. When regular customers call Perfect Pizza on the phone, they are asked their phone number. When the number is typed into a computer, the name, address, and last order date is automatically brought up on the screen. Once the order is taken, the total, including tax and delivery, is calculated. Then the order is given to the cook. A receipt is printed. Occasionally, special offers (coupons) are printed so the customer can get a discount. Drivers who make deliveries give customers a copy of the receipt and a coupon (if any). Weekly totals are kept for comparison with last year’s performance. ⦁ Write a summary of business activities for taking an order at Perfect Pizza. ⦁ Draw a context-level data flow diagram for Perfect Pizza ⦁ Explode the context-level diagram in b showing all the major processes. Call this Diagram 0. ⦁ Draw a logical child diagram for Diagram 0 in c for the process that adds a new customer if he or she is not currently in the database (has never ordered from Perfect Pizza before).
Addition of Two Numbers
Adding two numbers in programming is essentially the same as adding two numbers in general arithmetic. A significant difference is that in programming, you need to pay attention to the data type of the variable that will hold the sum of two numbers.
C++
C++ is a general-purpose hybrid language, which supports both OOPs and procedural language designed and developed by Bjarne Stroustrup. It began in 1979 as “C with Classes” at Bell Labs and first appeared in the year 1985 as C++. It is the superset of C programming language, because it uses most of the C code syntax. Due to its hybrid functionality, it used to develop embedded systems, operating systems, web browser, GUI and video games.
⦁ Perfect Pizza wants to install a system to record orders for pizza and chicken wings. When regular customers call Perfect Pizza on the phone, they are asked their phone number. When the number is typed into a computer, the name, address, and last order date is automatically brought up on the screen. Once the order is taken, the total, including tax and delivery, is calculated. Then the order is given to the cook. A receipt is printed. Occasionally, special offers (coupons) are printed so the customer can get a discount. Drivers who make deliveries give customers a copy of the receipt and a coupon (if any). Weekly totals are kept for comparison with last year’s performance.
⦁ Write a summary of business activities for taking an order at Perfect Pizza.
⦁ Draw a context-level data flow diagram for Perfect Pizza
⦁ Explode the context-level diagram in b showing all the major processes. Call this Diagram 0.
⦁ Draw a logical child diagram for Diagram 0 in c for the process that adds a new customer if he or she is not currently in the
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