Long description

The figure consists of three browser windows labeled User Session X, User Session Y, and User Session Z that are placed one below the other at the left side of the figure. A Server Memory that blocks some space for each of the user session carts is placed at the right side of the browser windows. A Session Store with a database is placed at the right side of the server memory. The session store saves the cart information for User Session X, User Session Y, and User Session Z. Note: The cart information of each user is serialized and stored in a session store.