Use cases are practical examples that illustrate how a product or service can be used to solve specific problems. For instance, a mobile app designed for fitness tracking can help users monitor their daily activity levels, set workout goals, and receive personalized exercise recommendations. This makes it easier for individuals to stay motivated and achieve their health objectives. Another example is a customer relationship management (CRM) system used by businesses to manage interactions with clients. By organizing customer data, tracking sales leads, and automating follow-up tasks, the CRM helps companies improve their customer service and increase sales efficiency. This ultimately leads to better relationships and higher customer satisfaction.