The template has been skillfully designed using Visual Paradigm Online, a versatile and user-friendly diagramming tool. Additionally, the diagram reflects features related to managing user accounts, including updating profile information and viewing order history. It also depicts the checkout process, which involves steps like placing an order, selecting a payment method, and choosing a shipping address. The use case diagram includes essential actions such as searching for products, viewing product details, adding items to the cart, updating the cart, and viewing the cart contents. The diagram outlines the various actions and processes involved in the system, enabling users to understand its overall structure and behavior. The Online Shopping System use case diagram is a visual representation of the key functionalities and interactions within an online shopping platform. View and play PowerPoint presentations online.