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CLASS DIAGRAM

Computer Sales and Inventory System Class Diagram

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UPDATED 2026-09-10
TYPEUmlclass
USE-CASEComputer Store Sales Inventory
EXAMPLEComputer Sales and Inventory System Class Diagram
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CASE ANALYSIS

Scenario

A multi-branch computer retail chain needs a centralized inventory and sales model to track stock per branch, customers, orders, payments, and supplier relationships.

Key decisions

  • Model inventory as a separate entity linked to both branch and product to capture per-branch stock
  • Use composition for SalesOrder to SalesLineItem to enforce order line ownership
  • Include enumerations for order and payment status to standardize workflow states

When to reuse this

Reuse this class diagram as a foundation for retail, e-commerce, or warehouse systems needing integrated sales and inventory management.

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