Design an Inventory Management System

Functional Requirements

• Users can add, update, and delete inventory items.
• Each inventory item includes: product name, SKU, quantity, price, and location.
• Users can view current inventory levels and search for items.
• System updates inventory levels in real-time when stock is added or removed.
• Users receive notifications when stock for an item falls below a configurable threshold.
• Basic reporting: users can view a summary of inventory levels and low-stock items.
• User authentication and basic role-based access (e.g., admin, staff).

Non-Functional Requirements

• System should support up to 100 concurrent users.
• Average response time for user actions should be under 1 second.
• Data consistency is important for inventory updates.
• System should be available at least 99.5% of the time.
• Access to the system should be secure (HTTPS, password protection).
• System should be easy to use for non-technical staff.
• The design should allow for moderate growth in data and users over time.