University:
Princeton University
Course:
COS 226 | Algorithms and Data Structures
Academic year:

2023
Views:

401

Pages:

4
Author:

Aurora Howard

Exercise 5: Restaurant Ordering System Construct a Data Flow Diagram (DFD) for a Restaurant Ordering System. In this system, Customers place their orders for food either at the restaurant or online. The Kitchen receives these orders, prepares the food, and updates the Order Status to notify the customer when their food is ready. Once the order is completed, the Cashier processes the payment. The system should also maintain a Menu with the list of available dishes and manage the Inventory of ingredients to ensure the kitchen is stocked. Design a Level 0 and Level 1 DFD to show how information flows through the restaurant system. Select menu Id Order request Id Customers Update order status Kitchen Order status 0 Notification Making payment Ingredient ready Customers require Restaurant ordering system Available Payment request Invoice Id Id Ingredient Usage Cashier Inventory Menu database Orders database Select menu Id 1 Customers Order request Customer order Customers database 2 Available Id Inventory Inventory management Ingredient Usage Ingredient ready 3 Id Customers require Kitchen Update order status Prepare foood Order status 4 Payment request Id Cashier Making payment Invoice Payment request Menu database Orders database 1.1 Id Select menu Customers Select Customers database 1.2 Order request Place order 2.1 Id Inventory Ingredient Usage Orders database Check Inventory 2.2 Id Available Ingredient ready Send Order Kitchen Orders database 3.1 Id Customers require Kitchen Received order Customers database 3.2 Preparing Update order status Id Order status Customers 4.1 Payment request Id Cashier Complete order Orders database 4.2 Invoice Process Payment Id Making payment Customers Customers database