Q:

Your client, a retail company, has approached you for assistance in optimizing their inventory management system. They need a database schema to track product inventory, suppliers, and orders efficiently. Design an Entity$-$Relationship $($ER$)$ diagram to represent this system, considering the following entities and their attributes:

$-$Product: Attributes may include ProductID, Name, Description, Price, and Quantity.

$-$Supplier: Attributes may include SupplierID, Name, Contact, Address.

$-$Order: Attributes may include OrderID, Date, and TotalAmount.

$-$OrderDetails: This is a relationship entity representing the details of each order, such as the quantity of each product ordered.

Consider the relationships between these entities and ensure that your ER diagram reflects these connections accurately. Your diagram should illustrate how products are supplied by suppliers, how orders are placed, and the details associated with each order.