Question

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.

1. Write a summary of business activities for taking an order at Perfect Pizza.
2. Draw a context-level data flow diagram for taking an order at Perfect Pizza.
3. Explode the context-level diagram into a logical data flow diagram showing all the major processes. Call this Diagram 0.
4. Draw a logical child diagram for the process in your Diagram 0 that adds a new customer if he or she is not currently in the database (has never ordered from Perfect Pizza before).

Submit your solutions in an Excel file.

Hello, its the full work, i didn’t leave anyhing behind

Answer 1

Answer:

a. Business Summary : Perfect Pizza a food joint, where they are delivering Pizza's and Chicken wing to their customers by taking orders over phone. Below are the six steps in which Business is happening:-

Step 1: Customer Calling and Placing their order by phone. Customers are identified with their Phone No.

Step 2: Post receiving order, that data base is searched using their Phone No. and if the users has ordered earlier also, theri details are fetched out from the database; Name, Address and Last Order

Step 3: Bill is generated by applying Coupon, Taxes and Delivery Cost.

Step 4: Post bill generation, Order goes to kitchen for cooking

Step 5: Delivery Person recieve the order from Kitchen and deliver it to the customer

Step 6: On a weekly basis the sales report is generated for the respective week and compared with the last years data of same month.

b. Data flow diagram for taking an order at Perfect Pizza:

c. Diagram 0 (Logical Flow Diagram)

d. Diagram 0 (With a new user)