Quality Management System like ISO 9001, are set of requirements, and says what you should do? Not much on how it is done, It is a frame framework built on PDCA Cycle. Once you are certified, along with fulfilling requirements, you also need to show continual improvement.
Six Sigma on the other hand is tools enables you achieve those set r…[Read more]
Hi, I would like to add few more points to review:
1. Whether the complains are from one product or various products. (It could be variants on the main product). Try to visualise pareto for any clues
2. What type of customer complaints? Can you categorise these customer complaints? If yes, again apply pareto for any clues?
3. Mode of Pu…[Read more]
As we know from Normal Distribution curve
The area of 1s covers approximately 68% of all values,
at 2s there are 95% and
6s (six sigma) contains 99,99996% of all values.
The theoretical value of 100% can not be reached in practice, because the curve meets the x axis in the infinity
Now For Dabbawallas PPM Calculation:
No of Da…[Read more]