Façade
Imagine you're building a smart home automation system that controls various devices such as lights, thermostats, and security cameras. Each device has its own complex interface and set of commands. Without a Façade Pattern, managing these devices directly in your code can quickly become overwhelming. For instance, turning on the lights might involve sending commands to different light bulbs, adjusting their brightness, and checking if any motion sensors need to be activated—all of which requires intricate coordination.