What does "PMS" stand for in aviation safety terms?

In aviation safety terms, "PMS" stands for Performance Management System. This system is critical as it encompasses the methods and processes used to monitor and enhance the performance of aviation operations, including safety management practices. A Performance Management System involves the collection and analysis of data to ensure that safety protocols are met and continually improved. This is essential for maintaining high safety standards and operational efficiency in the aviation industry.

The other choices represent terms that, while they might sound relevant, do not accurately reflect the recognized acronym "PMS" in the context of aviation safety. For instance, Pilot Management System might imply a focus solely on pilots but lacks the broader implication of performance evaluation across all aviation operations. Similarly, Performance Metric Standards and Plane Maintenance System, while they touch on important aspects of aviation, do not encompass the comprehensive approach that a Performance Management System provides in relation to safety.