Scope of Six Sigma:

Six sigma stands for six standard deviation from mean sigma is the Greek letter used to represent standard deviation in statistics. Six sigma similar to zero defect is a philosophical benchmark or standard of excellence proposed by Philip Crosby. Six sigma improves the process performance decrease variation and maintains consistent quality of the process output. This leads to defect reduction improvements in profits, product quality and customer satisfaction. Six sigma incorporates the basic principles and techniques used in business, statistics and engineering. It is used to create or service provide and the customer for your product or service and determine what they consider important. It satisfied the needs to provide the product or service that satisfies the customer. Though the six sigma concept is originated from manufacturing field, now it is applied to non-manufacturing processes also. Today one can apply six sigma to many fields such as services, medical and insurance procedures, call centers, etc. it is used to ensure continuous improvement by measuring, analyzing and controlling the improved process. While studying six sigma concept, it is important to known about capability ratio. It is the process of measures how well the product requirements match with the process capabilities. The higher the value of capabilities ratio better the match between product and process.