Performance data is a collection of statistics and information that measures the effectiveness, efficiency and other important aspects of a system or program. This data is used to evaluate performance, track progress, identify areas for improvement, and make informed decisions. Various organizations and programs, such as immigration agencies, medical examiners, and government programs, collect and analyze performance data to monitor their operations and ensure they are meeting their goals. Performance data is crucial in assessing the success of initiatives, tracking trends over time, and making evidence-based decisions. It can also be used to ensure that services are meeting user needs, are cost-efficient, and are providing a seamless experience for users.