Indoor navigation refers to the technology and methods used to help people find their way inside buildings or complex structures. Unlike outdoor navigation, which often relies on GPS, indoor navigation uses various tools such as Wi-Fi, Bluetooth, and beacons to determine a person's location and guide them to their destination. This technology is particularly useful in large venues like shopping malls, airports, and hospitals, where traditional maps may not be effective. By utilizing mobile apps or digital signage, indoor navigation systems can provide real-time directions, making it easier for users to navigate unfamiliar environments.