Draw a System Sequence Diagram $($SSD$)$ to illustrate the interactions between the actors and the system for the following scenario:

An employee logs into the system and reviews the current inventory. The system displays a list of available products and their quantities. The employee selects a product to update its stock level. The system prompts the employee to enter the new stock quantity. After submission, the system validates the entered information. If validation fails, the system notifies the employee, allowing them to correct the quantity $($looping back to the quantity entry step$).$ Upon successful validation, the system updates the stock level. The system checks if the employee needs to update stock for more products, iterating back to the product selection step. If no further updates are required, the system notifies the employee that the inventory is successfully managed.