DOMAIN MODELING

Vehicle Repair Shop Domain Model Class Diagram

A worked domain modeling example, rendered live. Open it in the AI editor and adapt it to your own case.

UPDATED 2026-09-23
EXAMPLEVehicle Repair Shop Domain Model Class Diagram
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CASE ANALYSIS

Scenario

A vehicle repair shop needs a domain model to track customers, their vehicles, service orders, labor, parts, invoices, and payments.

Key decisions

  • ServiceOrder composes ServiceLineItems (composition) to model order items.
  • Customer owns multiple Vehicles (one-to-many association).
  • Mechanic works on many ServiceOrders (one-to-many association).
  • ServiceOrder generates one Invoice (one-to-one association).
  • Invoice receives many Payments (one-to-many association).

When to reuse this

Use this model as a starting point for a repair shop management system, preserving class names and relationships while extending with additional attributes or operations as needed.

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