The scenario
Designing a coffee vending machine's software system to handle orders, payments, and inventory. The class diagram models the core entities: VendingMachine, Order, Beverage, Ingredient, and Payment, along with their attributes, operations, and associations.
What is in this drawing
Read the decisions behind it.
01
Separated Beverage from Ingredient for flexibility in recipes and stock management.
02
Used composition from Order to Beverage to indicate that beverages are part of an order and cannot exist independently in that context.
03
Introduced Payment as a separate class to encapsulate transaction processing.
When developing or analyzing a vending machine application's domain model, especially for handling multi-step ordering and payment integration.
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