Mean Time to Repair (MTTR) is a critical metric that measures the average time required to diagnose and fix a malfunctioning system, ensuring its return to full operational status. It is crucial across various industries, from software development to manufacturing and healthcare, as minimizing downtime is essential for maintaining productivity, customer satisfaction, and profitability. Calculating MTTR involves dividing total downtime by the number of repairs, with a lower MTTR indicating enhanced operational efficiency and resilience. In the context of software development, MTTR is vital for maintaining service availability and reliability, as it guides maintenance efforts, reduces operational costs, and helps meet service level agreements. This metric, along with Mean Time Between Failures (MTBF) and Mean Time to Failure (MTTF), provides a comprehensive view of system reliability. Implementing Continuous Integration and Continuous Delivery (CI/CD) pipelines can significantly reduce MTTR by automating processes, enabling rapid detection and resolution of issues, and fostering system resilience. Overall, MTTR is a key performance indicator for businesses aiming to enhance service levels and operational efficiency.