ECDIS, or Electronic Chart Display and Information System, is a computer-based navigation system used on ships. It integrates electronic navigational charts with various data sources, such as GPS and radar, to provide real-time information about a vessel's position and surrounding environment. This technology enhances safety and efficiency in maritime navigation. The use of ECDIS is mandated by the International Maritime Organization (IMO) for certain types of vessels. It allows for better route planning and monitoring, helping mariners avoid hazards and comply with maritime regulations. Overall, ECDIS represents a significant advancement in modern navigation practices.