E-commerce involves any transaction made over the Internet. In online marketing, a shopping cart is a piece of software on a web server that enables customers to purchase items from an Internet site. This software allows customers to add items to their “shopping cart” or “basket”, depending on the region. Upon checkout, the software typically calculates a total for the order, including shipping and handling charges and the associated taxes. This enables customers to complete their purchase with ease, quickly and securely.