Use Case Diagram for Pizza Factory

Actors:

• Customer
• Kitchen Staff
• Delivery Executive
• Admin / Manager
• Inventory System (External)
• Payment Gateway (External)

Use Cases:

• Place Order
• Customize Pizza
• Make Payment
• Track Order
• Cancel Order
• Receive Order (in kitchen)
• Update Order Status
• Manage Inventory
• Assign Delivery
• Update Delivery Status
• Add/Edit Menu
• View Sales Reports

Explanation Points for Students:

• Actors:
  Identify human and system actors. Customers interact directly; systems like Inventory and Payment Gateway interact via APIs.

• Use Cases:
  Actions the system supports. Each actor is associated with specific functions.

• System Boundaries:
  Everything inside the rectangle is handled by the Pizza Factory system. External systems communicate from outside.

• Optional Relationships (Extend / Include):

• • Customize Pizza can be an optional extension of Place Order.

  • Make Payment can include interactions with the Payment Gateway.