Page 57 - Six Sigma Yellow Belt
P. 57
Variation
• Variation refers to the differences or fluctuations in a process output.
It is the deviation of the actual results from the expected results, and
it can be caused by many factors such as the process inputs,
equipment, environment, and human factors. Reducing variation is a
critical aspect of Six Sigma as it helps to improve the process
performance and reduce defects.
• To give an example of variation in a payroll process, let's consider a
scenario where the payroll clerk manually inputs employee hours
worked into the payroll system. If the clerk makes an error in the data
entry, such as inputting 8 hours instead of 80 hours, this will result in a
significant variation in the process output. This variation could result in
an underpayment or overpayment of wages, which could impact
employee morale and satisfaction.
