This document discusses different types of tracking systems, including their uses and benefits. It provides examples of how tracking is used for fleet vehicle management, attendance tracking, and tracking player performance in football/soccer using Electronic Performance and Tracking Systems (EPTS). EPTS use camera systems, wearable devices, and other sensors to monitor player and ball positions and collect physiological data to analyze and improve performance. The document also outlines some physical tracking devices commonly used, such as optical camera systems, local positioning systems, and GPS/GNSS systems, noting their key benefits and limitations.