CASE STUDY
Read carefully the following case study. Based on the given case study, answer the following questions.
Yummylicious Pizza is a newly open pizza restaurant at TgMalim. As a new restaurant, currently, they are using a manual way to take orders from their customers. Mr. Asyraf, a new manager in this restaurant wants to have a computer-based system to record orders for pizza from their customer. When regular customers call Yummylicious Pizza on the phone, their phone number goes automatically into the pizza ordering system.
The phone number invokes the name, address, and last order date comes automatically up on the screen. If the customer is a new customer, then the system will ask for their information and keep it into a database, for future use. Once the order is taken, the total bill, including service tax and delivery charge, is calculated. Then, the order is given to the cook section to prepare the pizza.
A receipt is a print out for customer reference. Occasionally, special offer (coupons) is printed so the customer can get a discount for their future order. The runner who makes the delivery will be able to view the customer’s information for the delivery process. The runner also will give to the customer a copy of the receipt and coupon (if any). Once the order is delivered, the runner must update the delivery status. Weekly total sales are kept by the system for comparison for each week sales, and Manager can view and print this weekly report.
- Identify the entity involved in this system. State the functions for each entity.
- Draw a context diagram to illustrate the Yummylicious Pizza ordering system. You need to use any online tools to draw the context diagram.
- Explode the context diagram and draw the DFD diagram. Please use any suitable online tools to create the DFD.
- By using any suitable software, design a database to store the customer’s data. Show clearly the primary key, the secondary key, and the data type for each field. List 3 examples of records in the database.
- With the help of any suitable software, design two samples of interfaces, one interface for the runner, and another interface are for the manager.
- As a developer, how you going to handle the training for the target user, when this proposed system is developed? Please describe your training plan in detail.
- What will be the best system changeover strategy to apply to the proposed system once it’s ready to be used in the future? Justify your answer.
