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ERD · Inventory Management · Retail

Retail Store Inventory Management System ERD

Type Entity-Relationship Diagram (ERD)Standard Chen 1976 / Everest 1976 (crow's foot)Engine schematex-erdUpdated 6/24/2026
Retail Store Inventory Management System ERD
Drawing preview
The request

“A retail store inventory database with products, categories, suppliers, purchase orders, sales, sale items, and inventory records, showing how stock is purchased and sold.”

Then tryAdd stock transfers between storesAdd a reorder level to each inventory record
What is in this drawing

Read the decisions behind it.

01

Used an Inventory associative entity to store quantities per store-product pair

02

Linked PurchaseOrder to Store and Supplier directly

03

Separate PurchaseOrderItem table for order details

For any retail or warehouse management system requiring multi-store inventory tracking and procurement.

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