Six Sigma Methodology
Lean Six Sigma
Six Sigma Definition
The fundamental tools and measurement techniques of Six Sigma date back to the days of Carl Gauss in the 1800’s. The term Six Sigma was credited back to an engineer, Bill Smith, while working for Motorola in the 1970’s and 80’s and it is a registered trademark of Motorola. To help promote the concepts and techniques, they created the training levels of black belts, degree levels, masters and champions as a marketing program to promote the training.
It is hard to find any association between Flow manufacturing/pull production, to the Six Sigma program. Although the Six Sigma concept can be very helpful in understanding the importance of a processes capability and the association of the process capability back to the target mean specification. Further, a process capability gives the target mean more opportunities to produce party effects.
Lean Six Sigma
A set of management techniques intended to improve business processes by greatly reducing the probability that an error or defect will occur. Using Six Sigma Techniques, employees are able to identify problem areas, as well as recurring issues that affect the overall quality expectation of a service or product from a customer’s viewpoint.
What does it mean to Be "Six Sigma"?
What is Six Sigma?
What does it mean to be "Six Sigma"?
Six Sigma at many organizations simply means a measure of quality that strives for near perfection. It is a methodology that is well rooted in mathematics and statistics.
Many processes are prone to being influenced by special and/or assignable causes that impact the overall performance of the process relative to the customer’s specification. However, many processes could indeed be capable of producing a near perfect output. The difference between the “best” a process can be, and the customer’s aggregate experience is known as Shift depicted or Zshift or sshift.
The role of the Six Sigma is to quantify the process performance and based on the true process entitlement and process shift, establish the right strategy to reach the established performance objective. As the process sigma value increases from zero to six, the variation of the process around the mean value decreases. With a high enough value of process sigma, the process approaches zero variation and is known as ‘zero defects’.
Statistical Take Away
Decrease your process variation in order to increase your process sigma. The end result is greater customer satisfaction.
Six Sigma is a Tool That May be Used Once Manufacturing Processes are in Place.
Six Sigma is Not a Manufacturing Foundation.
Any graphical depiction of Six Sigma tends to look like a Bell Curve. “Bell Curve” refers to the bell shape that is created when a line is plotted using the data points for an item that meets the criteria of normal distribution. In a bell curve, the center contains the greatest number of a value and, therefore, it is the highest point on the arc of the line. This point is referred to as the mean.
The Bell Curve has been around long before Motorola, and creating training on staying as close to the mean as possible…may not be Revolutionary.
Design The Process
Know Your Processes and Targets
Flow Pull Production
Flow and Pull: Eliminate Scheduling
Lean Six Sigma
Continually Work Toward Process Perfection
Six Sigma May be Utilized to Reduce Defects.
With a Successful Flow Pull Process in Place, Defects Are Already Reduced. Start the Process Striving for Perfection…Don’t End With It!
Stop and Think
Six Sigma Certification
Motorola created multi-colored belts to reflect how much money an individual was willing to spend to spruce up his/her resume. Quite the brilliant marketing ploy.