Database schema for Inventory Management System

Designing a database schema for an Inventory Management System involves capturing information related to products, suppliers, orders, and stock levels. Below is a basic example of a database schema for an Inventory Management System.

Entities:

  1. Product:

    • ProductID (Primary Key)
    • ProductName
    • Category
    • Description
    • UnitPrice
    • CurrentStock

  2. Supplier:

    • SupplierID (Primary Key)
    • SupplierName
    • ContactPerson
    • PhoneNumber
    • Email

  3. Order:

    • OrderID (Primary Key)
    • SupplierID (Foreign Key referencing Supplier table)
    • OrderDate
    • DeliveryDate
    • Status (e.g., pending, delivered)

  4. OrderDetail:

    • DetailID (Primary Key)
    • OrderID (Foreign Key referencing Order table)
    • ProductID (Foreign Key referencing Product table)
    • Quantity
    • UnitPrice
    • Subtotal

  5. Customer:

    • CustomerID (Primary Key)
    • FirstName
    • LastName
    • Address
    • PhoneNumber
    • Email

  6. Sales:

    • SaleID (Primary Key)
    • CustomerID (Foreign Key referencing Customer table)
    • SaleDate
    • TotalAmount

  7. SalesDetail:

    • DetailID (Primary Key)
    • SaleID (Foreign Key referencing Sales table)
    • ProductID (Foreign Key referencing Product table)
    • Quantity
    • UnitPrice
    • Subtotal

This schema covers the basic entities needed for an Inventory Management System. Here are some explanations:

  • Products represent items in the inventory, with details such as name, category, description, unit price, and current stock level.
  • Suppliers provide products to the inventory, and their information is stored in the Supplier table.
  • Orders are placed to suppliers, indicating the order date, delivery date, and order status.
  • OrderDetails link products to orders, specifying the quantity, unit price, and subtotal for each product in an order.
  • Customers have personal information stored, and they can make purchases.
  • Sales capture information about customer purchases, including the sale date and total amount.
  • SalesDetails link products to sales, specifying the quantity, unit price, and subtotal for each product in a sale.

Depending on the specific requirements of your Inventory Management System, you may need to expand or modify this schema. Consider additional features such as inventory tracking by location, batch management, alerts for low stock levels, or any other information relevant to your inventory management platform. Additionally, ensure that your system addresses security concerns to protect sensitive inventory data.