Reliability Centred Maintenance (RCM) is a process that is used to determine the maintenance requirements of a system. It is a proactive approach to maintenance that is designed to ensure that the system is reliable and performs its intended function. RCM is based on the premise that the system should be maintained in a manner that will ensure its reliability and performance. The process involves identifying the system’s critical components, assessing the system’s failure modes, and then developing maintenance strategies that will ensure the system’s reliability. RCM is used to determine the most cost-effective maintenance strategies that will provide the highest level of reliability. The process also includes identifying the potential causes of failure and developing strategies to prevent them. RCM is an important tool for ensuring that a system is reliable and performing as intended.