SPC is method of measuring and controlling quality by monitoring the manufacturing process. Data is collected and used to evaluate, monitor and control a process. SPC is a decision-making tool and widely used in manufacturing processes for achieving process stability to continuous improvements in product quality. Statistical Process Control ( SPC ) is the application of statistical methods in monitoring and controlling a process for quality management. Statistical Process Control ( SPC ) is a popular methodology for quality control management in software project management. It is the process that allows the use of statistical methods to monitor and control quality control management.