Software Design

Food Delivery: State Handoffs in UML

UML Class Diagrams · made in Skemio

UML class diagram showing relationships between Restaurant, Menu, DeliveryOrder, and Courier in an on-demand food delivery system.

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What it shows

DeliveryOrder coordinates status across preparation, pickup, and transit
Decouples restaurant menu catalog from real-time dispatch assignment
Courier assignment tracks location independently of kitchen preparation

The takeaway

Explicit domain state transitions prevent conflicting updates between kitchen staff and couriers.

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