In this collaboration diagram for an Inventory Management System, the interactions between key system components and external entities are outlined. The Customer initiates the process by placing an order through the Order System, which then checks stock availability with the Inventory System. If stock is insufficient, the Inventory System triggers the Notification System to notify low stock. The Notification System retrieves supplier information from the Supplier Database and contacts the Supplier for stock replenishment. Upon receiving the request, the Supplier delivers the necessary stock to the Inventory System, and the Inventory Manager reviews and updates the stock levels. This diagram demonstrates how the Supplier acts as an external actor, playing a crucial role in maintaining inventory levels by supplying goods when needed.
